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CVE-2026-91149

Cockpit: cockpit: denial of service via unbounded connection thread spawning

CVSS 3.1 7.5 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-91149

Published

A flaw was found in Cockpit. An unauthenticated remote attacker can exploit this vulnerability by initiating and sustaining numerous simultaneous connections to the `cockpit-tls` service. This forces the service to create an unbounded number of detached threads, consuming system resources such as memory and file descriptors. The primary consequence is a denial of service (DoS), leading to degradation or complete unavailability of the Cockpit service for legitimate users.

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Affected versions, risk and source history

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CVE-2026-91149 · CVE overview and exploitation status

cve-program · CVE-2026-91149

Related changes

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