Vulnerability · Published Oct 1, 2026 · Assigned by VulnCheck

CVE-2026-104057Podgrab Unauthenticated DoS via Concurrent Map Access in WebSocket Handler

High 7.5

In plain English

A high-severity race condition in podgrab from akhilrex. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.3%top 81.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
akhilrex	podgrab	0 – through 032248091294dbf5b6a439a5afd93788a7cc647f

Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Researcher Disclosure technical-description
https://www.vulncheck.com/advisories/podgrab-unauthenticated-dos-via-concurrent-map-access-in-websocket-handler third-party-advisory