High [CVE-2026-5816] GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1
This high-severity GitLab advisory covers CVE-2026-5816 affecting GitLab CE.
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Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.
- 18.10
- 18.10.4
- 18.11
- 18.11.1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 18.10.4
- 18.11.1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation
Upgrade to a fixed release: 18.10.4, 18.11.1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Discussion(0)
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