CVE-2026-97229

Integer Overflow or Wraparound in GitLab

CVE-2026-97229 is fixed in ruby3.3 on 1 platform by DEBIAN-CVE-2026-97229 (version 3.3.13-0+deb13u1), released November 8, 2026. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on October 29, 2026. Patch Radar priority: Patch now.

Patch nowCISA KEV

CVSS

10.0

Critical

Exploitation

Exploited

Listed by CISA

CISA KEV

Oct 29, 2026

Federal due date Nov 1, 2026

EPSS

0.6522

99th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
ruby3.3 · Debian 13.5 (trixie)	3.3.13-0+deb13u1	DEBIAN-CVE-2026-97229	Nov 8, 2026

Details

Published
October 13, 2026
Weakness
Integer Overflow or Wraparound
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97229

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