Integer Overflow Vulnerability in GitLab CE/EE Products
CVE-2026-93577

9.9CRITICAL

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
23 September 2026

What is CVE-2026-93577?

An integer overflow issue in GitLab CE/EE could permit authenticated users to execute arbitrary code on the server. This vulnerability arises when specially crafted regular expressions are processed in CI/CD configurations, potentially leading to unauthorized code execution. GitLab has addressed this vulnerability in versions 19.2.7, 19.3.3, and 19.4.1, and users are strongly encouraged to update to these patched versions to mitigate security risks.

Affected Version(s)

GitLab 19.2 < 19.2.7

GitLab 19.3 < 19.3.3

GitLab 19.4 < 19.4.1

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/629758
https://hackerone.com/reports/3995696
technical-descriptionexploitpermissions-required
https://docs.gitlab.com/releases/patches/patch-release-gi...

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program
.