Cyber Resilience

CVE-2026-0934

Access Control in Gitlab 17.9.0 – 18.11.6

Published
25 June 2026
Modified
26 June 2026
Patch / advisory
CVSS Score v3.1 3.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0020 10th percentile
Risk Priority 21 floored blend · peak EPSS

Summary

CVE-2026-0934 is a low-severity Incorrect Authorization (CWE-863) vulnerability in Gitlab Gitlab. Its CVSS base score is 3.8 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 10th 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-3 (Access Enforcement) and AC-6 (Least Privilege) — 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 EE affecting all versions from 17.9 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 custom role permissions to view, create, or…

more

delete protected environment configurations despite CI/CD visibility being disabled for the project.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
Why these techniques?

CWE-863 authz bypass directly enables unauthorized config actions equivalent to app-level privilege escalation (T1068).

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

CVEs Like This One

CVE-2026-6277Same product: Gitlab Gitlab
CVE-2026-4363Same product: Gitlab Gitlab
CVE-2026-1752Same product: Gitlab Gitlab
CVE-2025-2242Same product: Gitlab Gitlab
CVE-2024-7296Same product: Gitlab Gitlab
CVE-2025-0516Same product: Gitlab Gitlab
CVE-2026-2726Same product: Gitlab Gitlab
CVE-2025-6168Same product: Gitlab Gitlab
CVE-2023-4658Same product: Gitlab Gitlab
CVE-2026-6269Same product: Gitlab Gitlab

Affected Assets

gitlab
gitlab
19.1.0 · 17.9.0 — 18.11.6 · 19.0.0 — 19.0.3

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-3 Access Enforcement
  • AC-6 Least Privilege
  • 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 decisions so that custom-role permissions cannot bypass the project-level CI/CD visibility restriction on protected environment configurations.

prevent

Requires that custom roles receive only the minimum privileges needed, preventing the over-privileged access that allowed view/create/delete of protected environments.

prevent

Enforces information-flow rules that should have blocked disclosure or modification of protected-environment data when CI/CD visibility is disabled.

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