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CVE-2026-9204 GitLab CVE debrief

CVE-2026-9204 is a vulnerability in GitLab CE/EE that could allow an authenticated user to read arbitrary files from the Gitaly server and access internal network resources during repository import. This issue affects versions 18.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2.

Vendor
GitLab
Product
Unknown
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-11
Advisory published
2026-06-11
Advisory updated
2026-06-11

Who should care

Users of GitLab CE/EE versions 18.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 should be aware of this vulnerability and take necessary actions to remediate it.

Technical summary

The vulnerability is caused by insufficient validation of secondary URLs in GitLab CE/EE. This allows an authenticated user to read arbitrary files from the Gitaly server and access internal network resources during repository import.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update to version 18.10.8, 18.11.5, or 19.0.2 or later
  • Refer to vendor documentation for more information: [ref-4](https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/)

Evidence notes

The CVE-2026-9204 record and associated details are sourced from official databases and vendor communications.

Official resources

CVE-2026-9204 was published on 2026-06-11T12:16:32.983Z and modified on 2026-06-11T17:28:47.560Z.