7.1
HIGH CVSS 3.1
CVE-2026-4786
Incomplete mitigation of CVE-2026-4519, %action expansion for command injection to webbrowser.open()
Description

Mitgation of CVE-2026-4519 was incomplete. If the URL contained "%action" the mitigation could be bypassed for certain browser types the "webbrowser.open()" API could have commands injected into the underlying shell. See CVE-2026-4519 for details.

INFO

Published Date :

April 13, 2026, 10:16 p.m.

Last Modified :

July 6, 2026, 1:17 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-4786 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Python python
2 Python cpython
1 Libexpat_project libexpat
1 Python_software_foundation cpython
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
CVSS 4.0 HIGH 28c92f92-d60d-412d-b760-e73465c3df22
CVSS 4.0 HIGH [email protected]
Solution
Address incomplete mitigation to prevent command injection via URL manipulation.
  • Update the webbrowser.open() API implementation.
  • Sanitize all URL inputs.
  • Validate URL parameters strictly.
  • Test mitigation thoroughly.
Public PoC/Exploit Available at Github

CVE-2026-4786 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-4786.

URL Resource
https://github.com/python/cpython/commit/28b4ad38067bbdad34edfcd03ad2de5f06387e53
https://github.com/python/cpython/commit/c5767a72838a8dda9d6dc5d3558075b055c56bca
https://github.com/python/cpython/commit/d22922c8a7958353689dc4763dd72da2dea03fff
https://github.com/python/cpython/commit/d6d68494be70bdbda20f89f83801ba52ec37daa4
https://github.com/python/cpython/commit/f4654824ae0850ac87227fb270f9057477946769
https://github.com/python/cpython/issues/148169
https://github.com/python/cpython/pull/148170
https://mail.python.org/archives/list/[email protected]/thread/JQDUNJVB4AQNTJECSUKOBDU3XCJIPSE5/
https://access.redhat.com/errata/RHSA-2026:10117
https://access.redhat.com/errata/RHSA-2026:10140
https://access.redhat.com/errata/RHSA-2026:10141
https://access.redhat.com/errata/RHSA-2026:10711
https://access.redhat.com/errata/RHSA-2026:10745
https://access.redhat.com/errata/RHSA-2026:10774
https://access.redhat.com/errata/RHSA-2026:10949
https://access.redhat.com/errata/RHSA-2026:10950
https://access.redhat.com/errata/RHSA-2026:11062
https://access.redhat.com/errata/RHSA-2026:11077
https://access.redhat.com/errata/RHSA-2026:11768
https://access.redhat.com/errata/RHSA-2026:13692
https://access.redhat.com/errata/RHSA-2026:13812
https://access.redhat.com/errata/RHSA-2026:14652
https://access.redhat.com/errata/RHSA-2026:14653
https://access.redhat.com/errata/RHSA-2026:14656
https://access.redhat.com/errata/RHSA-2026:16699
https://access.redhat.com/errata/RHSA-2026:17525
https://access.redhat.com/errata/RHSA-2026:17619
https://access.redhat.com/errata/RHSA-2026:19019
https://access.redhat.com/errata/RHSA-2026:19064
https://access.redhat.com/errata/RHSA-2026:19175
https://access.redhat.com/errata/RHSA-2026:19176
https://access.redhat.com/errata/RHSA-2026:19177
https://access.redhat.com/errata/RHSA-2026:19216
https://access.redhat.com/errata/RHSA-2026:19549
https://access.redhat.com/errata/RHSA-2026:19570
https://access.redhat.com/errata/RHSA-2026:19571
https://access.redhat.com/errata/RHSA-2026:19576
https://access.redhat.com/errata/RHSA-2026:19589
https://access.redhat.com/errata/RHSA-2026:19590
https://access.redhat.com/errata/RHSA-2026:21275
https://access.redhat.com/errata/RHSA-2026:21682
https://access.redhat.com/errata/RHSA-2026:22144
https://access.redhat.com/errata/RHSA-2026:25096
https://access.redhat.com/errata/RHSA-2026:26187
https://access.redhat.com/errata/RHSA-2026:28247
https://access.redhat.com/errata/RHSA-2026:28581
https://access.redhat.com/errata/RHSA-2026:30078
https://access.redhat.com/errata/RHSA-2026:30087
https://access.redhat.com/errata/RHSA-2026:30088
https://access.redhat.com/errata/RHSA-2026:30089
https://access.redhat.com/errata/RHSA-2026:35838
https://access.redhat.com/errata/RHSA-2026:8822
https://access.redhat.com/errata/RHSA-2026:8824
https://access.redhat.com/errata/RHSA-2026:9228
https://access.redhat.com/security/cve/CVE-2026-4786
https://bugzilla.redhat.com/show_bug.cgi?id=2458049
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4786.json
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-4786 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Dockerfile Shell

Updated: 4 days, 9 hours ago
0 stars 0 fork 0 watcher
Born at : June 26, 2026, 10:56 a.m. This repo has been linked 10 different CVEs too.

Hardened Docker infrastructure for an LLM based swedish language tutor

Python JavaScript HTML Go Template CSS

Updated: 2 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : April 13, 2026, 11:23 a.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-4786 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-4786 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

    Jul. 06, 2026

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2026:35838
    Changed Affected [{'cpes': ['cpe:/o:redhat:rhel_els:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server (v. 7 ELS)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server Optional (v. 7 ELS)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhosemc:1.0::el8'], 'vendor': 'Red Hat', 'product': 'Middleware Containers for OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1', 'cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_aus:8.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus_long_life:8.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_aus:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_tus:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream TUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:8.8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_tus:8.8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream TUS (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:9.0::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.9.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:9.2::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.9.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1', 'cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_aus:8.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus_long_life:8.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_aus:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_tus:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS TUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:8.8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_tus:8.8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS TUS (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:9.0::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.9.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:9.2::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.9.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus:9.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus:9.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1', 'cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CRB (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ai_inference_server:3.2::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat AI Inference Server 3.2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ai_inference_server:3.3::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat AI Inference Server 3.3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux_ai:3.3::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AI 3.3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhui:5::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Update Infrastructure 5', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}] [{'cpes': ['cpe:/o:redhat:rhel_els:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server (v. 7 ELS)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server Optional (v. 7 ELS)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhosemc:1.0::el8'], 'vendor': 'Red Hat', 'product': 'Middleware Containers for OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1', 'cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_aus:8.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus_long_life:8.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_aus:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_tus:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream TUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:8.8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_tus:8.8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream TUS (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:9.0::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.9.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:9.2::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.9.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1', 'cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_aus:8.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus_long_life:8.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_aus:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_tus:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS TUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:8.8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_tus:8.8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS TUS (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:9.0::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.9.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:9.2::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.9.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus:9.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus:9.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1', 'cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CRB (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ai_inference_server:3.2::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat AI Inference Server 3.2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ai_inference_server:3.3::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat AI Inference Server 3.3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux_ai:3.3::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AI 3.3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhui:5::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Update Infrastructure 5', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}]
  • CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

    Jun. 30, 2026

    Action Type Old Value New Value
    Added Affected [{'cpes': ['cpe:/o:redhat:rhel_els:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server (v. 7 ELS)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server Optional (v. 7 ELS)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhosemc:1.0::el8'], 'vendor': 'Red Hat', 'product': 'Middleware Containers for OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1', 'cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_aus:8.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus_long_life:8.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_aus:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_tus:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream TUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:8.8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_tus:8.8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream TUS (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:9.0::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.9.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:9.2::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.9.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1', 'cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_aus:8.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus_long_life:8.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_aus:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_tus:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS TUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:8.8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_tus:8.8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS TUS (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:9.0::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.9.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:9.2::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.9.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus:9.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus:9.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1', 'cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CRB (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ai_inference_server:3.2::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat AI Inference Server 3.2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ai_inference_server:3.3::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat AI Inference Server 3.3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux_ai:3.3::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AI 3.3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhui:5::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Update Infrastructure 5', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}]
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
    Added CWE CWE-88
    Added Reference https://access.redhat.com/errata/RHSA-2026:10117
    Added Reference https://access.redhat.com/errata/RHSA-2026:10140
    Added Reference https://access.redhat.com/errata/RHSA-2026:10141
    Added Reference https://access.redhat.com/errata/RHSA-2026:10711
    Added Reference https://access.redhat.com/errata/RHSA-2026:10745
    Added Reference https://access.redhat.com/errata/RHSA-2026:10774
    Added Reference https://access.redhat.com/errata/RHSA-2026:10949
    Added Reference https://access.redhat.com/errata/RHSA-2026:10950
    Added Reference https://access.redhat.com/errata/RHSA-2026:11062
    Added Reference https://access.redhat.com/errata/RHSA-2026:11077
    Added Reference https://access.redhat.com/errata/RHSA-2026:11768
    Added Reference https://access.redhat.com/errata/RHSA-2026:13692
    Added Reference https://access.redhat.com/errata/RHSA-2026:13812
    Added Reference https://access.redhat.com/errata/RHSA-2026:14652
    Added Reference https://access.redhat.com/errata/RHSA-2026:14653
    Added Reference https://access.redhat.com/errata/RHSA-2026:14656
    Added Reference https://access.redhat.com/errata/RHSA-2026:16699
    Added Reference https://access.redhat.com/errata/RHSA-2026:17525
    Added Reference https://access.redhat.com/errata/RHSA-2026:17619
    Added Reference https://access.redhat.com/errata/RHSA-2026:19019
    Added Reference https://access.redhat.com/errata/RHSA-2026:19064
    Added Reference https://access.redhat.com/errata/RHSA-2026:19175
    Added Reference https://access.redhat.com/errata/RHSA-2026:19176
    Added Reference https://access.redhat.com/errata/RHSA-2026:19177
    Added Reference https://access.redhat.com/errata/RHSA-2026:19216
    Added Reference https://access.redhat.com/errata/RHSA-2026:19549
    Added Reference https://access.redhat.com/errata/RHSA-2026:19570
    Added Reference https://access.redhat.com/errata/RHSA-2026:19571
    Added Reference https://access.redhat.com/errata/RHSA-2026:19576
    Added Reference https://access.redhat.com/errata/RHSA-2026:19589
    Added Reference https://access.redhat.com/errata/RHSA-2026:19590
    Added Reference https://access.redhat.com/errata/RHSA-2026:21275
    Added Reference https://access.redhat.com/errata/RHSA-2026:21682
    Added Reference https://access.redhat.com/errata/RHSA-2026:22144
    Added Reference https://access.redhat.com/errata/RHSA-2026:25096
    Added Reference https://access.redhat.com/errata/RHSA-2026:26187
    Added Reference https://access.redhat.com/errata/RHSA-2026:28247
    Added Reference https://access.redhat.com/errata/RHSA-2026:28581
    Added Reference https://access.redhat.com/errata/RHSA-2026:30078
    Added Reference https://access.redhat.com/errata/RHSA-2026:30087
    Added Reference https://access.redhat.com/errata/RHSA-2026:30088
    Added Reference https://access.redhat.com/errata/RHSA-2026:30089
    Added Reference https://access.redhat.com/errata/RHSA-2026:8822
    Added Reference https://access.redhat.com/errata/RHSA-2026:8824
    Added Reference https://access.redhat.com/errata/RHSA-2026:9228
    Added Reference https://access.redhat.com/security/cve/CVE-2026-4786
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2458049
    Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4786.json
  • CVE Modified by [email protected]

    Jun. 17, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://github.com/python/cpython', 'vendor': 'Python Software Foundation', 'product': 'CPython', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '3.13.14', 'versionType': 'python'}, {'status': 'affected', 'version': '3.14.0a1', 'lessThan': '3.14.5rc1', 'versionType': 'python'}, {'status': 'affected', 'version': '3.15.0a1', 'lessThan': '3.15.0b1', 'versionType': 'python'}], 'defaultStatus': 'unaffected'}]
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 17, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-4786', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-04-14T13:43:47.712946Z'}
  • CVE Modified by [email protected]

    Apr. 29, 2026

    Action Type Old Value New Value
    Added Reference https://github.com/python/cpython/commit/28b4ad38067bbdad34edfcd03ad2de5f06387e53
    Added Reference https://github.com/python/cpython/commit/d6d68494be70bdbda20f89f83801ba52ec37daa4
  • CVE Modified by [email protected]

    Apr. 14, 2026

    Action Type Old Value New Value
    Added Reference https://github.com/python/cpython/commit/c5767a72838a8dda9d6dc5d3558075b055c56bca
    Added Reference https://github.com/python/cpython/commit/d22922c8a7958353689dc4763dd72da2dea03fff
    Added Reference https://github.com/python/cpython/commit/f4654824ae0850ac87227fb270f9057477946769
  • New CVE Received by [email protected]

    Apr. 13, 2026

    Action Type Old Value New Value
    Added Description Mitgation of CVE-2026-4519 was incomplete. If the URL contained "%action" the mitigation could be bypassed for certain browser types the "webbrowser.open()" API could have commands injected into the underlying shell. See CVE-2026-4519 for details.
    Added CVSS V4.0 AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-77
    Added Reference https://github.com/python/cpython/issues/148169
    Added Reference https://github.com/python/cpython/pull/148170
    Added Reference https://mail.python.org/archives/list/[email protected]/thread/JQDUNJVB4AQNTJECSUKOBDU3XCJIPSE5/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.