This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-91150 →
Unrated
A flaw was found in Cockpit. This vulnerability allows a remote attacker, without prior authentication, to send specially crafted fragmented WebSocket...
UBUNTU-CVE-2026-91150
First seen on SecPulse
Affected packages
| Package | Affected → Fixed | |
|---|---|---|
| Ubuntu:18.04:LTScockpit |
All versions→ Not listed |
Not listed |
| Ubuntu:20.04:LTScockpit |
All versions→ Not listed |
Not listed |
| Ubuntu:22.04:LTScockpit |
All versions→ Not listed |
Not listed |
| Ubuntu:24.04:LTScockpit |
All versions→ Not listed |
Not listed |
| Ubuntu:26.10cockpit |
All versions→ Not listed |
Not listed |
| Ubuntu:26.04:LTScockpit |
All versions→ Not listed |
Not listed |
This record does not list fixed versions. Check the article or the vendor advisory in the references for whether and where it is fixed.
Original description The description as published by the source.
A flaw was found in Cockpit. This vulnerability allows a remote attacker, without prior authentication, to send specially crafted fragmented WebSocket messages. These messages accumulate without a total-size limit, leading to unbounded memory exhaustion and a denial of service in the cockpit-ws service.
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- report ubuntu.com
- report cve.org
- report access.redhat.com
- report bugzilla.redhat.com
- report github.com
- report github.com