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VULNERABILITIES

CVE-2026-91147 Details

Description

A flaw was found in `cockpit-ws`. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending a specially crafted request. When the `WebService.UrlRoot` is configured and a request is made to the exact URL-root prefix without a trailing slash, `cockpit-ws` can terminate unexpectedly. This issue leads to the unavailability of the Cockpit web service.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=2479230 CISA-ADP
https://access.redhat.com/security/cve/CVE-2026-91147 [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2479230 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-617Reachable Assertion[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-91147
NVD Published Date:
Sep 18, 2026
NVD Last Modified:
Sep 22, 2026
Source:
[email protected]
CVE-2026-91147 Details - Not Deferred