Cockpit: cockpit: denial of service via unbounded connection thread spawning
Historical advisory recorded 11 Nov 2026 14:57:26 UTC. Read the latest advisory.
cve-program · CVE-2026-91149
PublishedA 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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cve-program · CVE-2026-91149
PublishedCockpit: cockpit: denial of service via unbounded connection thread spawning
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.
- Source published
- 18 Sep 2026 16:43:46 UTC
- Source modified
- 11 Nov 2026 13:08:28 UTC
- Saved here
- 11 Nov 2026 14:57:26 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H