9.1

CVE-2026-44945

Cross-Cluster Impersonation Confused-Deputy Privilege Escalation

A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user
 global role can gain full administrative access to the Rancher control 
plane and transitively to all downstream clusters it manages.

This issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerSUSE
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Produkt Rancher
Default Statusunaffected
Version 2.11.0
Version < 2.11.16
Status affected
Version 2.12.0
Version < 2.12.12
Status affected
Version 2.13.0
Version < 2.13.8
Status affected
Version 2.14.0
Version < 2.14.2
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 0.3% 0.226
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
SUSE 9.1 2.3 6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')

The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.

CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

The product does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the product does.

https://github.com/rancher/rancher/pull/55983
https://github.com/rancher/rancher/security/advisories/GHSA-v584-7w32-jwpq
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44945