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CVE-2026-97229

critical

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server via a specially crafted regular expression in a CI/CD configuration, due to insufficient regular expression validation.

References

https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/

https://github.com/rapid7/metasploit-framework/pull/22017

https://www.bleepingcomputer.com/news/security/hackers-now-exploiting-max-severity-gitlab-flaw-in-attacks/

https://www.cisa.gov/news-events/alerts/2026/10/29/cisa-adds-two-known-exploited-vulnerabilities-catalog

https://hackerone.com/reports/4058589

https://hackerone.com/reports/4055749

https://www.bleepingcomputer.com/news/security/gitlab-warns-of-new-max-severity-code-execution-vulnerability/

https://www.helpnetsecurity.com/2026/10/13/gitlab-ci-cd-regular-expression-compiler-vulnerability-cve-2026-97229/

https://thehackernews.com/2026/10/gitlab-patches-cvss-100-flaw-that-could.html

https://securityaffairs.com/200868/security/gitlab-patches-max-severity-vulnerability-cve-2026-97229.html

https://www.bleepingcomputer.com/news/security/gitlab-warns-of-max-severity-rce-flaw-in-regex-compiler-engine/

https://github.com/Noshadi-sec/CVE-2026-97229

https://github.com/AmpedWasTaken/CVE-2026-97229-GitLab-CI-CD-Regex-Compiler-RCE

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-97229

https://gitlab.com/gitlab-org/gitlab/-/work_items/630686

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-98214

Details

Source: Mitre, NVD

Published: 2026-10-13

Updated: 2026-11-02

Named Vulnerability: GHSA-9hj5-r43h-h3xgKnown Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 10

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.6522

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability of Interest