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CVE-2026-4868— Authorization Bypass Through User-Controlled Key in GitLab

CVSS 8.2 · High

Affected Version Matrix 3

VendorProductVersion RangeStatus
GitLabGitLab18.8< 18.10.7affected
18.11< 18.11.4affected
19.0< 19.0.1affected
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I. Basic Information for CVE-2026-4868

Vulnerability Information
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Vulnerability Title
Authorization Bypass Through User-Controlled Key in GitLab
Source: NVD (National Vulnerability Database)
Vulnerability Description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that, under certain conditions, could have allowed an authenticated user to cause specific Duo AI workflows to run under another user's identity due to improper user identity resolution when triggering Duo AI workflow runners.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
GitLabGitLab 18.8 ~ 18.10.7 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-4868

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III. Intelligence Information for CVE-2026-4868

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Patches & Fixes for CVE-2026-4868 (1)

Other References for CVE-2026-4868 (1)

Same Patch Batch · GitLab · 2026-05-27 · 6 CVEs total

CVE-2026-14026.5 MEDIUMAllocation of Resources Without Limits or Throttling in GitLab
CVE-2026-67135.3 MEDIUMIncorrect Authorization in GitLab
CVE-2026-26014.3 MEDIUMMissing Authorization in GitLab
CVE-2026-52964.3 MEDIUMMissing Authorization in GitLab
CVE-2026-87164.3 MEDIUMUse of Incorrectly-Resolved Name or Reference in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-639

V. Comments for CVE-2026-4868

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