<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Label this issue](https://contributors.gitlab.com/manage-issue?action=label&projectId=278964&issueIid=596593) </details> <!--IssueSummary end--> Gitlab Omnibus ships with a vulnerable zlib version 3.3.0 as part of the Ruby 3.3.0 install. Updating to zlib 3.2.3 resolves CVE-2026-27820 cc @gitlab-com/gl-security/product-security/vulnerability-management