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OpenAdvisories
Medium · 5.8 CVE-2026-3160 EUVD-2026-30226GHSA-255c-fxwg-6753

Unintended Proxy or Intermediary ('Confused Deputy') in GitLab

Published May 14, 2026 · Updated May 14, 2026 · Assigned by GitLab

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to view Jira issues outside the configured project scope due to an integration filter functioning only as a display control rather than enforcing access boundaries as specified.

Affected products

VendorProductAffectedFixed
GitLab GitLab 13.7 – < 18.9.7, 18.10 – < 18.10.6, 18.11 – < 18.11.3 18.9.7

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS gitlab No fix yet —

Advisories 2

References