CVE-2026-77912 | GitHub Enterprise Server up to 3.22.0 Markdown Rendering cross site scripting

September 22, 2026 Yanac

A vulnerability identified as problematic has been detected in GitHub Enterprise Server up to 3.22.0. Affected by this issue is some unknown functionality of the component Markdown Rendering. This manipulation causes cross site scripting.

The identification of this vulnerability is CVE-2026-77912. It is possible to initiate the attack remotely. There is no exploit available.

You should upgrade the affected component.VulDB Recent EntriesRead More