CVE-2023-3441: Exposure of Sensitive Information Due to Incompatible Policies in GitLab

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-10-01 · updated 2026-06-17
Weakness: CWE-213

Description

An issue has been discovered in GitLab EE/CE affecting all versions starting from 8.0 before 16.4. The product did not sufficiently warn about security implications of granting merge rights to protected branches.

Affected products

GitLab: from 8.0.0 before 16.4.0 — fixed in 16.4.0

How to fix

Upgrade to a fixed version: GitLab 16.4.0. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/gitlab/-/issues/416482
https://gitlab.com/gitlab-org/gitlab/-/issues/417284
https://hackerone.com/reports/2033561
https://hackerone.com/reports/2041385

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