CVE-2026-104057

Summary

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.

Affected Software

Weaknesses

• CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://gist.github.com/mansurmavlankulov/022bc672583687ccb34dcf4cb31b6188
• https://www.vulncheck.com/advisories/podgrab-unauthenticated-dos-via-concurrent-map-access-in-websocket-handler

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