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CVE-2026-3254 Improper Restriction of Rendered UI Layers or Frames in GitLab

🗓️ 22 Apr 2026 16:29:48Reported by GitLabType 
cvelist
 cvelist
🔗 www.cve.org👁 24 Views

GitLab CE/EE before 18.11.1 fixed issue enabling an authenticated user to load unauthorized content in another user’s browser via the Mermaid sandbox.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-3254
22 Apr 202616:29
attackerkb
Circl
CVE-2026-3254
22 Apr 202612:50
circl
CNNVD
GitLab CE/EE 安全漏洞
22 Apr 202600:00
cnnvd
CVE
CVE-2026-3254
22 Apr 202616:29
cve
Debian CVE
CVE-2026-3254
22 Apr 202616:29
debiancve
EUVD
EUVD-2026-24961
22 Apr 202618:31
euvd
Tenable Nessus
FreeBSD : Gitlab -- vulnerabilities (73b927a6-3ecd-11f1-be20-2cf05da270f3)
23 Apr 202600:00
nessus
Tenable Nessus
GitLab 18.11 < 18.11.1 (CVE-2026-3254)
22 Apr 202600:00
nessus
NCSC
Vulnerabilities handled in GitLab EE and CE
23 Apr 202611:21
ncsc
NVD
CVE-2026-3254
22 Apr 202617:16
nvd
Rows per page
[
  {
    "vendor": "GitLab",
    "product": "GitLab",
    "repo": "git://[email protected]:gitlab-org/gitlab.git",
    "cpes": [
      "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
    ],
    "versions": [
      {
        "version": "18.11",
        "status": "affected",
        "lessThan": "18.11.1",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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