Buffer overflow in GitLab Enterprise Edition - CVE-2026-88765

 

Buffer overflow in GitLab Enterprise Edition - CVE-2026-88765

Published: September 11, 2026 / Updated: September 11, 2026


Vulnerability identifier: #VU148979
CSH Severity: Medium
CVSS v4: 7.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-88765
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Unicode conversion wrapper. A remote user can import a specially crafted Git project export, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

GitLab Enterprise Edition

How to mitigate CVE-2026-88765

Install updates from vendor's website.

GitLab Enterprise Edition - addressed in versions 19.1.8, 19.2.6, 19.3.2

External References

Related Security Bulletins