CVE-2026-97229: gitlab Integer Overflow

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.

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CVSS v3.1 Score

10.0

CRITICAL

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

EPSS — Exploit Prediction

0.6522

Probability of exploitation

0.99%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild.

Added: Oct 29, 2026 Remediation due: Nov 1, 2026

Weakness Type (CWE)

CWE-190 Integer Overflow

Affected Products

Vendor	Product	Versions
gitlab	gitlab	19.2.0 — 19.2.8
gitlab	gitlab	19.2.0 — 19.2.8
gitlab	gitlab	19.3.0 — 19.3.5
gitlab	gitlab	19.3.0 — 19.3.5
gitlab	gitlab	19.4.0 — 19.4.2
gitlab	gitlab	19.4.0 — 19.4.2

References

Advisories & Patches

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

Other References

https://gitlab.com/gitlab-org/gitlab/-/work_items/630686 https://hackerone.com/reports/4055749 https://hackerone.com/reports/4058589

Frequently Asked Questions

What is CVE-2026-97229? +

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. It has a CVSS v3.1 base score of 10.0 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2026-97229? +

CVE-2026-97229 has a CVSS v3.1 score of 10.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.6522, placing it in the 1th percentile for exploitation probability.

What products are affected by CVE-2026-97229? +

CVE-2026-97229 affects products from gitlab, specifically: gitlab. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-97229? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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