2026-01-08: Deployments blocked due to broken mirroring from canonical to security GitLab

Deployments blocked due to broken mirroring from canonical to security GitLab (Severity 3)

Problem: Mirroring from canonical to security GitLab broke due to merge conflicts in three files after a patch release.

Impact: Deployments from the security GitLab repository were blocked until the mirroring conflicts were resolved.

Causes: A recent patch release introduced conflicting changes in three files between the canonical and security GitLab repositories, breaking the mirroring process.

Response strategy: We resolved all file conflicts https://gitlab.com/gitlab-org/security/gitlab/-/merge_requests/5637, merged the conflict resolution into the security repository after obtaining backend maintainer approval, and restored mirroring to unblock deployments.

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This ticket was created to track INC-6483, by incident.io 🔥