Reachable Assertion Affecting cockpit package, versions <368-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.4% (33rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-COCKPIT-19946508
  • published19 Sept 2026
  • disclosed18 Sept 2026

Introduced: 18 Sep 2026

CVE-2026-91147  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade Debian:unstable cockpit to version 368-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cockpit package and not the cockpit package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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 Base Scores

version 3.1