CVE-2026-5816
8
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| GitLab | GitLab | 18.10 < 18.10.4 | affected |
| GitLab | GitLab | 18.11 < 18.11.1 | affected |
Weaknesses
- CWE-41: CWE-41: Improper Resolution of Path Equivalence
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://hackerone.com/reports/3572231
- https://gitlab.com/gitlab-org/gitlab/-/work_items/592816
- https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/
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