7.1
HIGH
CVSS 3.1
CVE-2026-4519
webbrowser.open() allows leading dashes in URLs
Overview
Description
The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize URLs prior to passing to webbrowser.open().
Details
INFO
Published Date :
March 20, 2026, 3:16 p.m.
Last Modified :
June 30, 2026, 3:20 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Impact
Affected Products
The following products are affected by CVE-2026-4519
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.
Scoring
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 | LOW | [email protected] | ||||
| CVSS 3.1 | HIGH | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | ||||
| CVSS 4.0 | MEDIUM | 28c92f92-d60d-412d-b760-e73465c3df22 | ||||
| CVSS 4.0 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
Sanitize URLs passed to webbrowser.open() to prevent command line option injection.
- Sanitize input URLs before calling webbrowser.open().
- Update to a version that properly handles leading dashes.
- Avoid passing URLs with leading dashes.
References
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-2026-4519.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-4519 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-4519
weaknesses.
CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters
CAPEC-7: Blind SQL Injection Blind SQL Injection
CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call
CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities
CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables
CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values
CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow
CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client
CAPEC-23: File Content Injection File Content Injection
CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow
CAPEC-28: Fuzzing Fuzzing
CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies
CAPEC-42: MIME Conversion MIME Conversion
CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers
CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links
CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags
CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion
CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes
CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash
CAPEC-63: Cross-Site Scripting (XSS) Cross-Site Scripting (XSS)
CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic
CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog()
CAPEC-71: Using Unicode Encoding to Bypass Validation Logic Using Unicode Encoding to Bypass Validation Logic
CAPEC-72: URL Encoding URL Encoding
CAPEC-73: User-Controlled Filename User-Controlled Filename
CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding
CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding
CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic
CAPEC-81: Web Server Logs Tampering Web Server Logs Tampering
CAPEC-83: XPath Injection XPath Injection
CAPEC-85: AJAX Footprinting AJAX Footprinting
CAPEC-88: OS Command Injection OS Command Injection
CAPEC-101: Server Side Include (SSI) Injection Server Side Include (SSI) Injection
CAPEC-104: Cross Zone Scripting Cross Zone Scripting
CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection
CAPEC-109: Object Relational Mapping Injection Object Relational Mapping Injection
CAPEC-110: SQL Injection through SOAP Parameter Tampering SQL Injection through SOAP Parameter Tampering
CAPEC-120: Double Encoding Double Encoding
CAPEC-135: Format String Injection Format String Injection
CAPEC-136: LDAP Injection LDAP Injection
CAPEC-153: Input Data Manipulation Input Data Manipulation
CAPEC-182: Flash Injection Flash Injection
CAPEC-209: XSS Using MIME Type Mismatch XSS Using MIME Type Mismatch
CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads
CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads
CAPEC-250: XML Injection XML Injection
CAPEC-261: Fuzzing for garnering other adjacent user/sensitive data Fuzzing for garnering other adjacent user/sensitive data
CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding
CAPEC-473: Signature Spoof Signature Spoof
CAPEC-588: DOM-Based XSS DOM-Based XSS
CAPEC-664: Server Side Request Forgery Server Side Request Forgery
CAPEC-41: Using Meta-characters in E-mail Headers to Inject Malicious Payloads Using Meta-characters in E-mail Headers to Inject Malicious Payloads
CAPEC-88: OS Command Injection OS Command Injection
CAPEC-137: Parameter Injection Parameter Injection
CAPEC-174: Flash Parameter Injection Flash Parameter Injection
CAPEC-460: HTTP Parameter Pollution (HPP) HTTP Parameter Pollution (HPP)
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-4519 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-4519 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
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:8.2::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v. 8.2)', '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:8.2::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v. 8.2)', '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:discovery:2::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Discovery 2', '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': 'unaffected'}] 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-2026:10065 Added Reference https://access.redhat.com/errata/RHSA-2026:10101 Added Reference https://access.redhat.com/errata/RHSA-2026:10102 Added Reference https://access.redhat.com/errata/RHSA-2026:10111 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-2026:13812 Added Reference https://access.redhat.com/errata/RHSA-2026:16008 Added Reference https://access.redhat.com/errata/RHSA-2026:16009 Added Reference https://access.redhat.com/errata/RHSA-2026:16030 Added Reference https://access.redhat.com/errata/RHSA-2026:16174 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-2026:19724 Added Reference https://access.redhat.com/errata/RHSA-2026:19725 Added Reference https://access.redhat.com/errata/RHSA-2026:21275 Added Reference https://access.redhat.com/errata/RHSA-2026:25096 Added Reference https://access.redhat.com/errata/RHSA-2026:6016 Added Reference https://access.redhat.com/errata/RHSA-2026:6035 Added Reference https://access.redhat.com/errata/RHSA-2026:6256 Added Reference https://access.redhat.com/errata/RHSA-2026:6281 Added Reference https://access.redhat.com/errata/RHSA-2026:6283 Added Reference https://access.redhat.com/errata/RHSA-2026:6285 Added Reference https://access.redhat.com/errata/RHSA-2026:6286 Added Reference https://access.redhat.com/errata/RHSA-2026:6473 Added Reference https://access.redhat.com/errata/RHSA-2026:6766 Added Reference https://access.redhat.com/errata/RHSA-2026:7010 Added Reference https://access.redhat.com/errata/RHSA-2026:7244 Added Reference https://access.redhat.com/errata/RHSA-2026:7329 Added Reference https://access.redhat.com/errata/RHSA-2026:7335 Added Reference https://access.redhat.com/errata/RHSA-2026:7443 Added Reference https://access.redhat.com/errata/RHSA-2026:7661 Added Reference https://access.redhat.com/errata/RHSA-2026:8746 Added Reference https://access.redhat.com/errata/RHSA-2026:8747 Added Reference https://access.redhat.com/errata/RHSA-2026:8748 Added Reference https://access.redhat.com/errata/RHSA-2026:9042 Added Reference https://access.redhat.com/errata/RHSA-2026:9260 Added Reference https://access.redhat.com/errata/RHSA-2026:9261 Added Reference https://access.redhat.com/errata/RHSA-2026:9262 Added Reference https://access.redhat.com/errata/RHSA-2026:9289 Added Reference https://access.redhat.com/errata/RHSA-2026:9354 Added Reference https://access.redhat.com/errata/RHSA-2026:9386 Added Reference https://access.redhat.com/errata/RHSA-2026:9387 Added Reference https://access.redhat.com/errata/RHSA-2026:9591 Added Reference https://access.redhat.com/errata/RHSA-2026:9614 Added Reference https://access.redhat.com/errata/RHSA-2026:9621 Added Reference https://access.redhat.com/errata/RHSA-2026:9705 Added Reference https://access.redhat.com/errata/RHSA-2026:9745 Added Reference https://access.redhat.com/security/cve/CVE-2026-4519 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2449649 Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4519.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', 'modules': ['webbrowser'], 'product': 'CPython', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '3.13.13', 'versionType': 'python'}, {'status': 'affected', 'version': '3.14.0', 'lessThan': '3.14.4', 'versionType': 'python'}, {'status': 'affected', 'version': '3.15.0a1', 'lessThan': '3.15.0a8', '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-2026-4519', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-03-25T14:30:47.809505Z'} -
Initial Analysis by [email protected]
Apr. 16, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:python:python:3.15.0:alpha1:*:*:*:*:*:* *cpe:2.3:a:python:python:3.15.0:alpha2:*:*:*:*:*:* *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions up to (excluding) 3.13.13 *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.14.0 up to (excluding) 3.14.4 *cpe:2.3:a:python:python:3.15.0:alpha3:*:*:*:*:*:* *cpe:2.3:a:python:python:3.15.0:alpha4:*:*:*:*:*:* *cpe:2.3:a:python:python:3.15.0:alpha5:*:*:*:*:*:* *cpe:2.3:a:python:python:3.15.0:alpha6:*:*:*:*:*:* *cpe:2.3:a:python:python:3.15.0:alpha7:*:*:*:*:*:* Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/3681d47a440865aead912a054d4599087b4270dd Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/43fe06b96f6a6cf5cfd5bdab20b8649374956866 Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/591ed890270c5697b013bf637029fb3e6cd2d73e Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/594b5a05dc9913880ac92eded440defbf32a28d1 Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/82a24a4442312bdcfc4c799885e8b3e00990f02b Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/89bfb8e5ed3c7caa241028f1a4eac5f6275a46a4 Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/9669a912a0e329c094e992204d6bdb8787024d76 Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/96fc5048605863c7b6fd6289643feb0e97edd96c Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/ad4d5ba32af4d80b0dfa2ba9d8203bfb219e60a5 Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/cbba6119391112aba9c5aebf7b94aea447922c48 Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/cc023511238ad93ecc8796157c6f9139a2bb2932 Types: Patch Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2026/03/20/1 Types: Mailing List, Third Party Advisory Added Reference Type Python Software Foundation: https://github.com/python/cpython/commit/ceac1efc66516ac387eef2c9a0ce671895b44f03 Types: Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/issues/143930 Types: Issue Tracking, Patch Added Reference Type Python Software Foundation: https://github.com/python/cpython/pull/143931 Types: Issue Tracking, Patch Added Reference Type Python Software Foundation: https://mail.python.org/archives/list/[email protected]/thread/AY5NDSS433JK56Q7Q5IS7B37QFZVVOUS/ Types: Vendor Advisory -
CVE Modified by [email protected]
Apr. 07, 2026
Action Type Old Value New Value Added Reference https://github.com/python/cpython/commit/3681d47a440865aead912a054d4599087b4270dd Added Reference https://github.com/python/cpython/commit/591ed890270c5697b013bf637029fb3e6cd2d73e Added Reference https://github.com/python/cpython/commit/594b5a05dc9913880ac92eded440defbf32a28d1 Added Reference https://github.com/python/cpython/commit/89bfb8e5ed3c7caa241028f1a4eac5f6275a46a4 Added Reference https://github.com/python/cpython/commit/96fc5048605863c7b6fd6289643feb0e97edd96c Added Reference https://github.com/python/cpython/commit/cc023511238ad93ecc8796157c6f9139a2bb2932 -
CVE Modified by [email protected]
Mar. 25, 2026
Action Type Old Value New Value Added Reference https://github.com/python/cpython/commit/cbba6119391112aba9c5aebf7b94aea447922c48 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 25, 2026
Action Type Old Value New Value Added CWE CWE-20 -
CVE Modified by [email protected]
Mar. 24, 2026
Action Type Old Value New Value Added Reference https://github.com/python/cpython/commit/43fe06b96f6a6cf5cfd5bdab20b8649374956866 Added Reference https://github.com/python/cpython/commit/82a24a4442312bdcfc4c799885e8b3e00990f02b Added Reference https://github.com/python/cpython/commit/9669a912a0e329c094e992204d6bdb8787024d76 Added Reference https://github.com/python/cpython/commit/ad4d5ba32af4d80b0dfa2ba9d8203bfb219e60a5 Added Reference https://github.com/python/cpython/commit/ceac1efc66516ac387eef2c9a0ce671895b44f03 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Mar. 20, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/03/20/1 -
CVE Modified by [email protected]
Mar. 20, 2026
Action Type Old Value New Value 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 Removed CVSS V4.0 AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/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 -
New CVE Received by [email protected]
Mar. 20, 2026
Action Type Old Value New Value Added Description The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize URLs prior to passing to webbrowser.open(). Added CVSS V4.0 AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/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 Reference https://github.com/python/cpython/issues/143930 Added Reference https://github.com/python/cpython/pull/143931 Added Reference https://mail.python.org/archives/list/[email protected]/thread/AY5NDSS433JK56Q7Q5IS7B37QFZVVOUS/
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.