CVE-2026-5816
highGitLab 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 unauthentic…
Vendor / product: Gitlab — gitlab
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.
CVSS
8.1
8.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-04-22 17:16
Modified: 2026-11-11 23:10
NVD status: Analyzed
Last synced 3 hours ago
Verified against the source API 2026-11-11 23:12 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
gitlab / gitlab ≥18.10.0 <18.10.4, 18.11.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/ cve@gitlab.com
- https://gitlab.com/gitlab-org/gitlab/-/work_items/592816 cve@gitlab.com
- https://hackerone.com/reports/3572231 cve@gitlab.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 23:12 UTC · record ↗