HIGHCVSS v3.1 7.5Vulnerability

CVE-2026-91150

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.

Properties

Severity
HIGH
Nvd fetched at
2026-11-11T23:49:45.533241+00:00
Cvss severity
HIGH
Cvss score
7.5
Retrieved at
2026-11-11T23:50:18+00:00
Score
7.5
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-91150
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
First seen by Signal
2026-11-11T19:44:24+00:00
Name
CVE-2026-91150
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published at
2026-11-11T19:17:47.043
Last modified
2026-11-11T19:17:47.193

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CVE-2026-91150 (CVSS v3.1 7.5) — Ninja Signal Threat Intelligence | Ninja Signal