Cyber Resilience

CVE-2025-7736

Access Control in Gitlab 17.9.0 – 18.3.6

Published
15 November 2025
Modified
19 November 2025
Patch / advisory
CVSS Score v3.1 3.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0027 19th percentile
Risk Priority 15 floored blend · peak EPSS

Summary

CVE-2025-7736 is a low-severity Incorrect Authorization (CWE-863) vulnerability in Gitlab Gitlab. Its CVSS base score is 3.1 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 19th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-24 (Access Control Decisions) and AC-3 (Access Enforcement) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.9 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to bypass access control restrictions and view GitLab Pages content intended…

more

only for project members by authenticating through OAuth providers.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Why these techniques?

Authorization bypass in public-facing GitLab Pages service directly enables exploitation of the web application for unauthorized data access.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-2726Same product: Gitlab Gitlab
CVE-2026-6269Same product: Gitlab Gitlab
CVE-2026-9807Same product: Gitlab Gitlab
CVE-2026-5796Same product: Gitlab Gitlab
CVE-2026-3553Same product: Gitlab Gitlab
CVE-2025-9957Same product: Gitlab Gitlab
CVE-2025-13928Same product: Gitlab Gitlab
CVE-2026-6713Same product: Gitlab Gitlab
CVE-2026-5952Same product: Gitlab Gitlab
CVE-2024-7296Same product: Gitlab Gitlab

Affected Assets

gitlab
gitlab
17.9.0 — 18.3.6 · 17.9.0 — 18.3.6 · 18.4.0 — 18.4.4

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-3 Access Enforcement
  • AC-24 Access Control Decisions
  • AC-4 Information Flow Enforcement
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 5 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly enforces authorization checks on GitLab Pages content that the OAuth-based bypass violated.

prevent

Requires correct access-control decisions based on project membership rather than OAuth authentication alone.

prevent

Enforces information-flow rules that should have blocked unauthorized viewing of member-only Pages content.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-05 mostly match
prevents

Defining, enforcing, and reviewing access authorizations and least privilege directly prevents incorrect authorization checks.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Requiring consistency between access rights and classification plus formal approval steps ensures that the authorization logic correctly distinguishes between entities that should and should not be granted access.

prevents

Enforcing policy-driven approval and role-change reviews stops incorrect or stale authorization decisions from remaining in effect after job changes or terminations.

prevents

By tying access rights to identity, device, location and classification, the control reduces the likelihood that an authorization decision will be based on an incorrect or bypassed policy.

References