BIT-gitlab-2026-5816

vendorUSosv

Improper Resolution of Path Equivalence in GitLab

view advisory published 2026-04-24Licence: per source

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-5816US	high8.1	0.41% (35th)	—	2026-04-22
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…

references

External citations — patches, advisories, analysis.

https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/ADVISORY
https://gitlab.com/gitlab-org/gitlab/-/work_items/592816WEB
https://hackerone.com/reports/3572231WEB
https://nvd.nist.gov/vuln/detail/CVE-2026-5816WEB

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