CVE-2026-44945
9.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| SUSE | Rancher | 2.11.0 < 2.11.16 | affected |
| SUSE | Rancher | 2.12.0 < 2.12.12 | affected |
| SUSE | Rancher | 2.13.0 < 2.13.8 | affected |
| SUSE | Rancher | 2.14.0 < 2.14.2 | affected |
Weaknesses
- CWE-441: CWE-441: Unintended Proxy or Intermediary ('Confused Deputy')
- CWE-497: CWE-497 Exposure of sensitive system information to an unauthorized control sphere
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- 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
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