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Medium

Incorrect Authorization in GitLab EE vulnerability flags AI detection API

IdentifiersCVE-2026-2619CWE-863· Incorrect Authorization

GitLab EE contains an incorrect authorization flaw in the vulnerability flags AI detection API. In affected versions, under certain circumstances, an authenticated user holding auditor privileges could modify vulnerability flag data in private projects, despite not being intended to have that level of write access. The issue affects GitLab EE versions from 18.6 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3.

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ANALYST BRIEF

Impact, mitigation & remediation

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Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an authenticated auditor-level user to alter vulnerability flag data associated with private projects. This can undermine the integrity of vulnerability management and security triage data in those projects, potentially causing inaccurate vulnerability status or flag state changes within private project workflows.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, limit or review assignment of auditor privileges, especially for users who do not require access to vulnerability-related features in private projects. Monitor and audit changes to vulnerability flag data in private projects for unauthorized modifications until the upgrade can be completed. No vendor-specific workaround beyond upgrading was provided in the supplied content.

Remediation

Patch, then assume compromise.

Upgrade GitLab EE to a fixed release: 18.8.9, 18.9.5, 18.10.3, or later, depending on the deployed release train. GitLab stated that GitLab.com was already patched and GitLab Dedicated customers did not need to take action.
PUBLIC EXPLOITS

Exploits

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VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

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GitLabGitlabapplication

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Associated malware

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Detection signatures

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Social activity1

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