Advisory severityHigh8.0GitLab

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; related products: GitLab CE.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-5816 Source published Apr 22, 2026Source updated Jun 17, 2026

VulniPulse record published Jul 11, 2026Record updated Jul 11, 2026

CVE-2026-5816

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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.

Affected versions

18.10
18.10.4
18.11
18.11.1

Official advisory · high-confidence parse· fetched 3 months ago·verify at source

Fixed versions

18.10.4
18.11.1

Official advisory · high-confidence parse· fetched 3 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 3 months ago·verify at source

Discussion(0)

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