Cross-Cluster Impersonation Confused-Deputy Privilege Escalation (SUSE Rancher)

CVE-2026-44945
CRITICAL 9.1

At a glance

Source
NVD
EPSS
EPSS 0.56 % · percentile 47 ()
State
PUBLISHED
Published
Updated
Assigner
suse
NVD status
Awaiting Analysis

Description

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.

Weaknesses (CWE)

  • CWE-441 — Unintended Proxy or Intermediary
  • CWE-497 — Exposure of Sensitive System Information to an Unauthorized Control Sphere

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsuse
CVSS 3.1CRITICAL 9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HNVD · meissner@suse.de (Secondary)

European references

Affected products

ProductVersions
SUSE · Rancheraffected 2.11.0 < 2.11.16 ; affected 2.12.0 < 2.12.12 ; affected 2.13.0 < 2.13.8 ; affected 2.14.0 < 2.14.2

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD