CVE-2026-40943 Oxia: Server crash via race condition in session heartbeat handling

Oxia is a metadata store and coordination system. Prior to 0.16.2, a race condition between session heartbeat processing and session closure can cause the server to panic with send on closed channel. The heartbeat method uses a blocking channel send while holding a mutex, and under specific timin...

CVE-2026-40943

CVE-2026-40943 affects Oxia prior to 0.16.2. A race between session heartbeat processing and session closure can cause the server to panic (send on closed channel) or deadlock due to the heartbeat() method holding a mutex while performing a blocking channel send, with a TOCTOU gap in KeepAlive. T...

GHSA-5GQC-QHRJ-9XW8 Oxia affected by server crash via race condition in session heartbeat handling

Summary A race condition between session heartbeat processing and session closure can cause the server to panic with send on closed channel. The heartbeat method uses a blocking channel send while holding a mutex, and under specific timing with concurrent close calls, this can lead to either a...