CVE-2026-91147

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.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-91147
https://bugzilla.redhat.com/show_bug.cgi?id=2479230
https://bugzilla.redhat.com/show_bug.cgi?id=2479230

Configurations

No configuration.

History

22 Sep 2026, 17:17

Type	Values Removed	Values Added
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2479230 -~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2479230 -

18 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-18 17:17

Updated : 2026-09-22 17:17

NVD link : CVE-2026-91147

Mitre link : CVE-2026-91147

CVE.ORG link : CVE-2026-91147

JSON object : View

Products Affected

No product.

CWE

CWE-617

Reachable Assertion

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