High severity · published Oct 1, 2026
CVE-2026-104057
Podgrab Unauthenticated DoS via Concurrent Map Access in WebSocket Handler
7.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PO
podgrab · akhilrex
through 032248091294dbf5b6a439a5afd93788a7cc647f · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-104057
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-104057
technical-description
https://gist.github.com/mansurmavlankulov/022bc672583687ccb34dcf4cb31b6188
third-party-advisory
https://www.vulncheck.com/advisories/podgrab-unauthenticated-dos-via-concurrent-map-access-in-websocket-handler
More from podgrab
5.3
CVE-2026-104058
Podgrab Missing Authentication on WebSocket /ws Endpoint
