EUVD-2026-39176
GHSA-3qr8-448j-gmpv
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Network-accessible web app (AV:N); 'certain conditions' implies non-trivial prerequisites (AC:H); authenticated low-privilege user required (PR:L); read-only partial disclosure with no integrity or availability impact (C:L/I:N/A:N).
Primary rating from Vendor (gitlab).
CVSS VectorVendor: gitlab
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Lifecycle Timeline
2DescriptionCVE.org
GitLab has remediated an issue in GitLab EE affecting all versions from 18.6 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with limited permissions to access project information due to insufficient authorization checks.
AnalysisAI
Insufficient authorization checks in GitLab Enterprise Edition expose project information to authenticated users with limited permissions under specific, undisclosed conditions. Affecting all EE releases from 18.6 up to (but not including) 18.11.6, 19.0.3, and 19.1.1, this CWE-862 flaw allows a low-privileged authenticated attacker to read project data they should not have access to. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) a valid authenticated GitLab EE session with at minimum a low-privilege role (PR:L per CVSS); (2) the attacker must meet unspecified 'certain conditions' (AC:H) that trigger the missing authorization check - the exact configuration or workflow is not publicly disclosed and is withheld in the HackerOne report; (3) the target must be a GitLab EE instance (not CE) running an affected version between 18.6 and the fixed releases. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The overall risk is low-to-moderate in practice. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated GitLab EE user holding a low-privilege role (such as Guest or Reporter) on one project engineers or encounters the specific undisclosed conditions that trigger the missing authorization check. Under those conditions, the application returns project information - such as repository metadata, issue details, or member lists - from a project the user is not legitimately a member of. … |
| Remediation | Upgrade GitLab EE to one of the patched releases: 18.11.6, 19.0.3, or 19.1.1, as documented in the official patch release advisory at https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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