UpHeron
All vulnerabilities

Servers and applications

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 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.

Severity
High 8.1
Published
22 Apr 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
18.10.4
Sources
NVD

Affected software

SoftwareAffected versions
GitLabServers and applications · cpe:a:gitlab:gitlab
  • From 18.10.0 before 18.10.4
  • Version 18.11.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-5816
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-5816