CVE-2026-104057 Podgrab Unauthenticated DoS via Concurrent Map Access in WebSocket Handler
Remote attackers can crash the Podgrab server by triggering a race condition in WebSocket handlers, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-104057?
CVE-2026-104057 is a high-severity vulnerability in akhilrex podgrab, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-362
Which versions are affected by CVE-2026-104057?
How do I fix CVE-2026-104057?
No fix has been published for CVE-2026-104057 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-104057 being exploited?
There is no known exploitation of CVE-2026-104057 in the wild and no public exploit code.
Sources
Also known as GHSA-mg2r-35f6-8r8h.