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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (46.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- SUSE Rancher — versions 2.11.0, 2.12.0, 2.13.0
Weakness classification (CWE)
References
- bugzilla.suse.com/show_bug.cgi (issue-tracking)
- github.com/rancher/rancher/pull/55983 (patch)
- github.com/rancher/rancher/security/advisories/GHSA-v584-7w32-jwpq (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.