Integer overflow in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-110264
Published: October 22, 2026
Vulnerability identifier: #VU157238
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-110264
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the GitLab server.
The vulnerability exists due to integer overflow in the regular expression compiler when compiling specially crafted regular expressions. A remote attacker can supply a specially crafted regular expression to execute arbitrary code on the server.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2026-110264
Install security update from vendor's website.
GitLab Enterprise Edition - addressed in versions 18.11.13, 19.0.10, 19.1.9, 19.2.9, 19.3.6, 19.4.3, 19.5.1
Gitlab Community Edition - addressed in versions 18.11.13, 19.0.10, 19.1.9, 19.2.9, 19.3.6, 19.4.3, 19.5.1
Gitlab Community Edition - addressed in versions 18.11.13, 19.0.10, 19.1.9, 19.2.9, 19.3.6, 19.4.3, 19.5.1