7.5
HIGH
CVSS 3.1
CVE-2026-12151
undici WebSocket client vulnerable to denial of service via fragment count bypass
Overview
Description
Impact: The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a message but does not enforce a limit on the number of fragments. A malicious WebSocket server can stream many small or empty continuation frames that each pass per-frame and cumulative-size validation, collectively causing unbounded memory growth in the client process. The result is memory exhaustion and a denial of service. Affected applications are those using the undici WebSocket client (new WebSocket(...)) or the WebSocketStream API that can be induced to connect to an attacker-controlled or compromised WebSocket endpoint. All releases starting at undici 6.17.0 are affected. Patches: Upgrade to undici >= 6.26.0, >= 7.28.0, or >= 8.5.0. Workarounds: No workaround is available. The fix must be applied through an upgrade.
Details
INFO
Published Date :
June 17, 2026, 5:16 p.m.
Last Modified :
July 9, 2026, 1:16 p.m.
Remotely Exploit :
Yes !
Source :
ce714d77-add3-4f53-aff5-83d477b104bb
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 | HIGH | ce714d77-add3-4f53-aff5-83d477b104bb | ||||
| CVSS 3.1 | HIGH | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
Solution
Upgrade the undici library to a patched version to prevent memory exhaustion and denial of service.
- Upgrade undici to version 6.26.0 or later.
- Upgrade undici to version 7.28.0 or later.
- Upgrade undici to version 8.5.0 or later.
Public PoC/Exploit Available at Github
CVE-2026-12151 has a 5 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2026-12151.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-12151 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-2026-12151
weaknesses.
CAPEC-147: XML Ping of the Death XML Ping of the Death
CAPEC-227: Sustained Client Engagement Sustained Client Engagement
CAPEC-492: Regular Expression Exponential Blowup Regular Expression Exponential Blowup
CAPEC-125: Flooding Flooding
CAPEC-130: Excessive Allocation Excessive Allocation
CAPEC-147: XML Ping of the Death XML Ping of the Death
CAPEC-197: Exponential Data Expansion Exponential Data Expansion
CAPEC-229: Serialized Data Parameter Blowup Serialized Data Parameter Blowup
CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads
CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads
CAPEC-469: HTTP DoS HTTP DoS
CAPEC-482: TCP Flood TCP Flood
CAPEC-486: UDP Flood UDP Flood
CAPEC-487: ICMP Flood ICMP Flood
CAPEC-488: HTTP Flood HTTP Flood
CAPEC-489: SSL Flood SSL Flood
CAPEC-490: Amplification Amplification
CAPEC-491: Quadratic Data Expansion Quadratic Data Expansion
CAPEC-493: SOAP Array Blowup SOAP Array Blowup
CAPEC-494: TCP Fragmentation TCP Fragmentation
CAPEC-495: UDP Fragmentation UDP Fragmentation
CAPEC-496: ICMP Fragmentation ICMP Fragmentation
CAPEC-528: XML Flood XML Flood
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
Makefile Shell
Updated: 2 weeks, 5 days ago
0 stars
0 fork
0 watcher
Born at : June 21, 2026, 12:32 p.m.
This repo has been linked 1 different CVEs too.
CVE-patched MeshCentral container — drop-in for the official image with no known fixable HIGH/CRITICAL CVEs (Trivy-gated, weekly rebuild)
container cve docker hardened meshcentral remote-management security trivy
Dockerfile
Updated: 2 weeks, 6 days ago
0 stars
0 fork
0 watcher
Born at : June 20, 2026, 10:30 a.m.
This repo has been linked 4 different CVEs too.
None
Dockerfile HTML TypeScript Python Go HCL Shell
Updated: 1 week, 4 days ago
0 stars
0 fork
0 watcher
Born at : June 7, 2026, 2:33 p.m.
This repo has been linked 1 different CVEs too.
None
JavaScript TypeScript PowerShell
Updated: 2 days, 21 hours ago
0 stars
0 fork
0 watcher
Born at : Dec. 1, 2024, 6:02 p.m.
This repo has been linked 18 different CVEs too.
All Public RunWhen Helm Charts - Managed by terraform
Shell Dockerfile Go Template
Updated: 2 weeks, 2 days ago
1 stars
1 fork
1 watcher
Born at : Sept. 18, 2023, 10:09 a.m.
This repo has been linked 111 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-2026-12151 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-12151 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. 09, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:36754 Added Reference https://access.redhat.com/errata/RHSA-2026:36820 Changed Affected [{'cpes': ['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:9::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cluster_observability_operator:1.5::el9'], 'vendor': 'Red Hat', 'product': 'Cluster Observability Operator 1.5.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:amq_broker:7'], 'vendor': 'Red Hat', 'product': 'Red Hat AMQ Broker 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_portal:2'], 'vendor': 'Red Hat', 'product': 'Self-service automation portal 2', 'defaultStatus': 'affected'}] [{'cpes': ['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:9::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cluster_observability_operator:1.5::el9'], 'vendor': 'Red Hat', 'product': 'Cluster Observability Operator 1.5.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1.10::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub 1.10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3.29::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces 3.29', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:amq_broker:7'], 'vendor': 'Red Hat', 'product': 'Red Hat AMQ Broker 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_portal:2'], 'vendor': 'Red Hat', 'product': 'Self-service automation portal 2', 'defaultStatus': 'affected'}] -
CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jul. 07, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:35891 Added Reference https://access.redhat.com/errata/RHSA-2026:35892 Changed Affected [{'cpes': ['cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cluster_observability_operator:1.5::el9'], 'vendor': 'Red Hat', 'product': 'Cluster Observability Operator 1.5.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:amq_broker:7'], 'vendor': 'Red Hat', 'product': 'Red Hat AMQ Broker 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_portal:2'], 'vendor': 'Red Hat', 'product': 'Self-service automation portal 2', 'defaultStatus': 'affected'}] [{'cpes': ['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:9::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cluster_observability_operator:1.5::el9'], 'vendor': 'Red Hat', 'product': 'Cluster Observability Operator 1.5.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:amq_broker:7'], 'vendor': 'Red Hat', 'product': 'Red Hat AMQ Broker 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_portal:2'], 'vendor': 'Red Hat', 'product': 'Self-service automation portal 2', 'defaultStatus': 'affected'}] -
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-2026:35841 Added Reference https://access.redhat.com/errata/RHSA-2026:35842 Changed Affected [{'cpes': ['cpe:/a:redhat:cluster_observability_operator:1.5::el9'], 'vendor': 'Red Hat', 'product': 'Cluster Observability Operator 1.5.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:amq_broker:7'], 'vendor': 'Red Hat', 'product': 'Red Hat AMQ Broker 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_portal:2'], 'vendor': 'Red Hat', 'product': 'Self-service automation portal 2', 'defaultStatus': 'affected'}] [{'cpes': ['cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cluster_observability_operator:1.5::el9'], 'vendor': 'Red Hat', 'product': 'Cluster Observability Operator 1.5.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:amq_broker:7'], 'vendor': 'Red Hat', 'product': 'Red Hat AMQ Broker 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_portal:2'], 'vendor': 'Red Hat', 'product': 'Self-service automation portal 2', 'defaultStatus': 'affected'}] -
CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jul. 02, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:34342 Changed Affected [{'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:amq_broker:7'], 'vendor': 'Red Hat', 'product': 'Red Hat AMQ Broker 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_portal:2'], 'vendor': 'Red Hat', 'product': 'Self-service automation portal 2', 'defaultStatus': 'affected'}] [{'cpes': ['cpe:/a:redhat:cluster_observability_operator:1.5::el9'], 'vendor': 'Red Hat', 'product': 'Cluster Observability Operator 1.5.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:amq_broker:7'], 'vendor': 'Red Hat', 'product': 'Red Hat AMQ Broker 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_portal:2'], 'vendor': 'Red Hat', 'product': 'Self-service automation portal 2', 'defaultStatus': 'affected'}] -
CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jun. 30, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:amq_broker:7'], 'vendor': 'Red Hat', 'product': 'Red Hat AMQ Broker 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_portal:2'], 'vendor': 'Red Hat', 'product': 'Self-service automation portal 2', 'defaultStatus': 'affected'}] Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-770 Added Reference https://access.redhat.com/security/cve/CVE-2026-12151 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2489980 Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12151.json -
Initial Analysis by [email protected]
Jun. 25, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:* versions from (including) 8.0.0 up to (excluding) 8.5.0 *cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:* versions from (including) 7.0.0 up to (excluding) 7.28.0 *cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:* versions from (including) 6.17.0 up to (excluding) 6.27.0 Added Reference Type openjs: https://cna.openjsf.org/security-advisories.html Types: Vendor Advisory Added Reference Type openjs: https://github.com/nodejs/undici/security/advisories/GHSA-vxpw-j846-p89q Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-12151', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-17T17:29:57.305732Z'} -
New CVE Received by ce714d77-add3-4f53-aff5-83d477b104bb
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'undici', 'product': 'undici', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '6.26.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.26.0', 'versionType': 'semver'}, {'status': 'affected', 'version': '7.0.0', 'lessThan': '7.28.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '7.28.0', 'versionType': 'semver'}, {'status': 'affected', 'version': '8.0.0', 'lessThan': '8.5.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '8.5.0', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/undici', 'defaultStatus': 'unaffected'}] Added Description Impact: The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a message but does not enforce a limit on the number of fragments. A malicious WebSocket server can stream many small or empty continuation frames that each pass per-frame and cumulative-size validation, collectively causing unbounded memory growth in the client process. The result is memory exhaustion and a denial of service. Affected applications are those using the undici WebSocket client (new WebSocket(...)) or the WebSocketStream API that can be induced to connect to an attacker-controlled or compromised WebSocket endpoint. All releases starting at undici 6.17.0 are affected. Patches: Upgrade to undici >= 6.26.0, >= 7.28.0, or >= 8.5.0. Workarounds: No workaround is available. The fix must be applied through an upgrade. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-400 Added CWE CWE-770 Added Reference https://cna.openjsf.org/security-advisories.html Added Reference https://github.com/nodejs/undici/security/advisories/GHSA-vxpw-j846-p89q
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.