7

CVE-2026-44949

Unauthenticated namespace creation and RBAC injection via rancher-webhook FleetWorkspace mutating webhook

A Rancher FleetWorkspace admission path allowed side effects to occur in
 the Rancher webhook handler for versions 0.7.0 up to 0.7.10, 0.8.0 up to 0.8.7, 0.9.0 up to 0.9.6 and 0.10.0 up to 0.10.7. An unauthenticated attacker with network access to
 the in-cluster rancher-webhook service
 could submit a crafted admission payload and cause workspace-related 
Kubernetes objects to be created with attacker-chosen identity data.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerSUSE
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Produkt Rancher
Default Statusunaffected
Version 0.7.0
Version < 0.7.10
Status affected
Version 0.8.0
Version < 0.8.7
Status affected
Version 0.9.0
Version < 0.9.6
Status affected
Version 0.10.0
Version < 0.10.7
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.141
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
meissner@suse.de 7 0 0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-306 Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

https://github.com/rancher/webhook/security/advisories/GHSA-h83p-cq95-vph4