CVE-2026-104057
CVE-2026-104057
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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- gist.github.com/mansurmavlankulov/022bc672583687ccb34dcf4cb31b6188 (technical-description)
- www.vulncheck.com/advisories/podgrab-unauthenticated-dos-via-concurrent-map-acc… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-104057?
- CVE-2026-104057 is a high-severity vulnerability, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2026-10-01.
- How severe is CVE-2026-104057?
- High severity. CVSS v3 base score is 7.5 out of 10.