一线运维实战手记 · 云计算 · 数据库 · 故障排查
2026年10月2日

CVE-2026-104057 [HIGH] – Podgrab contains an unauthenticated denial-of-service vulnerability caused by unsynchroniz

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Podgrab contains an unauthenticated denial-of-service vulnerability caused by unsynchronized concurrent access to shared maps (activePlayers and allConnections) in its WebSocket handler, where Wshandler and HandleWebsocketMessages goroutines read and write these maps without a mutex. A remote attacker can open multiple WebSocket connections to the /ws endpoint and send messages in a loop to trigger a Go runtime data race that crashes the process, causing a denial of service that requires operator intervention to restore service.