UpHeron
All vulnerabilities

Servers and applications

CVE-2026-100755

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain deployment configurations, could have allowed an authenticated user to poison cached page content served to other users due to improper cache key construction.

Severity
Medium 4.6
Published
13 Oct 2026
Last changed
14 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
19.2.8, 19.3.5, 19.4.2
Sources
NVD

Affected software

SoftwareAffected versions
GitLabServers and applications · cpe:a:gitlab:gitlab
  • From 16.2.0 before 19.2.8
  • From 19.3.0 before 19.3.5
  • From 19.4.0 before 19.4.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-100755
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-100755