EUVD-2026-25044Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Lifecycle Timeline
7DescriptionCVE.org
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that could have allowed an authenticated user to access titles of confidential or private issues in public projects due to improper access control in the issue description rendering process.
AnalysisAI
GitLab CE/EE 18.11 before 18.11.1 allows authenticated users to bypass access controls and read titles of confidential or private issues in public projects through improper validation in the issue description rendering process. The vulnerability requires valid user credentials but no elevated privileges, affecting the confidentiality of issue metadata that should be restricted. Publicly available exploit code exists, and a vendor patch is available.
Technical ContextAI
GitLab's issue description rendering system fails to properly enforce access control checks when displaying issue titles for confidential or private issues within public projects. The vulnerability stems from a gap in authorization logic (CWE-863: Incorrect Authorization) where the rendering process does not validate whether the authenticated user has permission to view sensitive issue metadata before inclusion in rendered output. Any authenticated user, even those without project membership or explicit issue access permissions, can retrieve restricted issue titles by exploiting this rendering pipeline flaw. The issue affects GitLab Community Edition (CE) and Enterprise Edition (EE) versions 18.11.x.
RemediationAI
Upgrade immediately to GitLab 18.11.1 or later, which contains the vendor-released patch restoring proper access control validation in the issue description rendering process. The patch is available from the official GitLab release page (https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/). No workarounds are available for this authorization flaw; patching is the only mitigation. If immediate upgrade is not feasible, temporarily restrict public project creation or disable issue feature visibility in public projects until patching can be completed, though these mitigations severely impact collaboration.
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Same weakness CWE-863 – Incorrect Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today