CVE-2026-82631 | valkey-io valkey 9.1.0 Blocked-on-keys Subsystem src/blocked.c handleClientsBlockedOnKey use after free (Issue 4198)

August 30, 2026 Yanac

A vulnerability was found in valkey-io valkey 9.1.0 and classified as problematic. The affected element is the function handleClientsBlockedOnKey of the file src/blocked.c of the component Blocked-on-keys Subsystem. The manipulation results in use after free.

This vulnerability was named CVE-2026-82631. The attack may be performed from remote. In addition, an exploit is available.

Applying a patch is advised to resolve this issue.VulDB Recent EntriesRead More