CVE-2026-44945 (GCVE-0-2026-44945)

Vulnerability from cvelistv5 – Published: 2026-08-05 10:00 – Updated: 2026-08-06 03:55
VLAI
Title
Cross-Cluster Impersonation Confused-Deputy Privilege Escalation
Summary
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.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 00:00 UTC
CWE
  • CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
  • CWE-497 - Exposure of sensitive system information to an unauthorized control sphere
Assigner
suse CNA under the mitre root
CNA scorecard B 80/100 over 118 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
SUSE Rancher Affected: 2.11.0 , < 2.11.16 (semver)
Affected: 2.12.0 , < 2.12.12 (semver)
Affected: 2.13.0 , < 2.13.8 (semver)
Affected: 2.14.0 , < 2.14.2 (semver)
guessed Create a notification for this product.
Credits
This vulnerability was discovered and reported by @BenTheCyberOne.
Show details on NVD website
To clipboard 

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