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Vendor Workaround
A code fix is being pursued for the affected streams. Until updated packages are available, avoid configuring a non-empty [WebService] UrlRoot in cockpit-ws where feasible. If a non-empty UrlRoot is required, configure the front-end proxy or TLS terminator in front of cockpit-ws to rewrite or redirect requests for the exact configured prefix (for example, /cockpit) to the trailing-slash form (for example, /cockpit/) before forwarding them, so the exact-prefix request never reaches cockpit-ws unnormalized. Deployments whose front end already normalizes or redirects such requests are not exposed through that route.
Tracking
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Tue, 22 Sep 2026 17:30:00 +0000
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ssvc
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Mon, 21 Sep 2026 19:45:00 +0000
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| First Time appeared |
Redhat openshift Dev Spaces
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| Vendors & Products |
Redhat openshift Dev Spaces
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Sat, 19 Sep 2026 00:15:00 +0000
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threat_severity
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threat_severity
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Fri, 18 Sep 2026 16:45:00 +0000
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| 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. | |
| Title | Cockpit: cockpit: denial of service in `cockpit-ws` due to url-root handling without a trailing slash | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat openshift Devspaces |
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| Weaknesses | CWE-617 | |
| CPEs | cpe:/a:redhat:openshift_devspaces:3 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat openshift Devspaces |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-10-16T12:19:08.640Z
Reserved: 2026-09-14T20:35:52.198Z
Link: CVE-2026-91147
Updated: 2026-09-22T16:22:28.368Z
Status : Awaiting Analysis
Published: 2026-09-18T17:17:05.427
Modified: 2026-09-22T17:17:28.777
Link: CVE-2026-91147
OpenCVE Enrichment
Updated: 2026-09-21T19:25:16Z
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CWE-617
Reachable Assertion