What is CVE-2026-44945?

CVE-2026-44945 is a critical-severity vulnerability in SUSE Rancher, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 9.1/10. Published 2026-08-05.

How severe is CVE-2026-44945?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in SUSE Rancher

CVE-2026-44945

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.

EPSS: 0.004 (31.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Suse Rancher — versions 2.11.0, 2.12.0, 2.13.0

Weakness classification (CWE)

References

meissner@suse.de (issue-tracking)
meissner@suse.de (patch)
meissner@suse.de (vendor-advisory)

Frequently asked questions

What is CVE-2026-44945?: CVE-2026-44945 is a critical-severity vulnerability in SUSE Rancher, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 9.1/10. Published 2026-08-05.
How severe is CVE-2026-44945?: Critical severity. CVSS v3 base score is 9.1 out of 10.