CVE-2026-97229

Integer Overflow or Wraparound in GitLab

State: Published
Severity: 10.0 Critical
Published: Oct 13, 2026
Updated: Oct 30, 2026
Reserved: Sep 24, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	10.0 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H	GitLab

Weaknesses

CWE-190 Integer Overflow or Wraparound

Affected Products

Product	Versions
GitLabGitLab	19.2 to before 19.2.8Affected 19.3 to before 19.3.5Affected 19.4 to before 19.4.2Affected

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/630686
HackerOne Bug Bounty Report #4055749technical-descriptionexploitpermissions-required
HackerOne Bug Bounty Report #4058589technical-descriptionexploitpermissions-required
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-97229government-resource
https://github.com/rapid7/metasploit-framework/pull/22017
https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/

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