CVE-2026-5921 | GitHub Enterprise Server up to 3.20.0 Notebook Rendering Service server-side request forgery

April 22, 2026 Yanac

A vulnerability has been found in GitHub Enterprise Server up to 3.20.0 and classified as critical. Affected is an unknown function of the component Notebook Rendering Service. This manipulation causes server-side request forgery.

This vulnerability appears as CVE-2026-5921. The attack may be initiated remotely. There is no available exploit.

The affected component should be upgraded.VulDB Recent EntriesRead More