CVE-2023-5207: Execution with Unnecessary Privileges in GitLab

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-30 · updated 2026-06-17
Weakness: CWE-250

Description

A vulnerability was discovered in GitLab CE and EE affecting all versions starting 16.0 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. An authenticated attacker could perform arbitrary pipeline execution under the context of another user.

Affected products

GitLab: from 16.0.0 before 16.2.8; from 16.3.0 before 16.3.5; 16.4.0 — fixed in 16.2.8, 16.3.5

How to fix

Upgrade to a fixed version: GitLab 16.2.8, 16.3.5. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/gitlab/-/issues/425604
https://gitlab.com/gitlab-org/gitlab/-/issues/425857
https://hackerone.com/reports/2174141
https://gitlab.com/gitlab-org/gitlab/-/issues/425604
https://gitlab.com/gitlab-org/gitlab/-/issues/425857
https://hackerone.com/reports/2174141

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