CVE-2026-97229: GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound Vulnerability
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.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HFrequently asked questions
Is CVE-2026-97229 being actively exploited?
Yes — CISA lists CVE-2026-97229 in its Known Exploited Vulnerabilities (KEV) catalog, so it is confirmed exploited in the wild. Patch it as a priority.
What does CVE-2026-97229 affect?
CVE-2026-97229 affects GitLab · Community Edition and Enterprise Edition.
How do I fix CVE-2026-97229?
Apply the vendor’s patch for the affected software. The federal patch deadline was Nov 1, 2026. Then check whether your personal data was exposed in any related breach.
References
- docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/
- gitlab.com/gitlab-org/gitlab/-/work_items/630686
- hackerone.com/reports/4055749
- hackerone.com/reports/4058589
- github.com/rapid7/metasploit-framework/pull/22017
- www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-97229