CVE-2026-97229

CriticalActively exploited (CISA KEV)

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.

SeverityCritical
CVSS10.0
Exploit probability99. percentile65.2%
ProductGitLab Community Edition and Enterprise Edition
PublishedOct 13, 2026
First seenOct 13, 2026
Added to KEVOct 29, 2026

How to fix

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.

CISA due date: Nov 1, 2026
Update
  • gitlab gitlab19.2.8, 19.3.5, 19.4.2 or later
  • ruby-lang ruby3.3.13, 3.4.12, 4.0.8 or later

Affected products

ProductAffected versionsFixed in
gitlab gitlab19.2.0 ≤ v < 19.2.8, 19.3.0 ≤ v < 19.3.5, 19.4.0 ≤ v < 19.4.219.2.8, 19.3.5, 19.4.2
ruby-lang ruby3.3.0 ≤ v < 3.3.13, 3.4.0 ≤ v < 3.4.12, 4.0.0 ≤ v < 4.0.83.3.13, 3.4.12, 4.0.8

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CVE-2026-97229 · GitLab Community Edition and Enterprise Edition · Dark Radar