CVE-2023-3993: Insertion of Sensitive Information into Log File in GitLab

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-02 · updated 2026-06-17
Weakness: CWE-532

Description

An issue has been discovered in GitLab EE affecting all versions starting from 14.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. Access tokens may have been logged when a query was made to a specific endpoint.

Affected products

GitLab: from 14.3 before 16.0.8; from 16.1 before 16.1.3; from 16.2 before 16.2.2 — fixed in 16.0.8, 16.1.3, 16.2.2

How to fix

Upgrade to a fixed version: GitLab 16.0.8, 16.1.3, 16.2.2. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/gitlab/-/issues/409570
https://gitlab.com/gitlab-org/gitlab/-/issues/409570

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