CVE-2023-0042

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-01-12 · updated 2026-06-17
Weakness: CWE-601

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.4 prior to 15.5.7, 15.6 prior to 15.6.4, and 15.7 prior to 15.7.2. GitLab Pages allows redirection to arbitrary protocols.

Affected products

GitLab: from 11.4.0 before 15.5.7; from 15.6.0 before 15.6.4; from 15.7.0 before 15.7.2 — fixed in 15.5.7, 15.6.4, 15.7.2

How to fix

Upgrade to a fixed version: GitLab 15.5.7, 15.6.4, 15.7.2. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0042.json
https://gitlab.com/gitlab-org/gitlab-pages/-/issues/728
https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0042.json
https://gitlab.com/gitlab-org/gitlab-pages/-/issues/728
https://gitlab.com/gitlab-org/gitlab-pages/-/issues/728

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