CVE-2026-6556 | fastify express up to 4.0.6 improper authorization (GHSA-3wf5-7852-vcfq)

June 30, 2026 Yanac

A vulnerability categorized as critical has been discovered in fastify express up to 4.0.6. Affected by this vulnerability is an unknown functionality. Such manipulation leads to improper authorization.

This vulnerability is listed as CVE-2026-6556. The attack may be performed from remote. There is no available exploit.

It is advisable to upgrade the affected component.VulDB Recent EntriesRead More