CVE-2026-16255 | GitLab up to 19.3.5/19.4.2/19.5.0 Membership Lock privileges management

October 22, 2026 Yanac

A vulnerability has been found in GitLab up to 19.3.5/19.4.2/19.5.0 and classified as critical. The affected element is an unknown function of the component Membership Lock. The manipulation leads to improper privilege management.

This vulnerability is uniquely identified as CVE-2026-16255. The attack is possible to be carried out remotely. No exploit exists.

The affected component should be upgraded.VulDB Recent EntriesRead More