CVE-2026-44945Critical· 9.1▾ MidnightA 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 con…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 50.1 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.6%
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/rancher/rancher >=2.14.0, <2.14.2github.com/rancher/rancher >=2.13.0, <2.13.8github.com/rancher/rancher >=2.12.0, <2.12.12github.com/rancher/rancher >=2.11.0, <2.11.16Patched in:
github.com/rancher/rancher 2.14.4github.com/rancher/rancher 2.13.8github.com/rancher/rancher 2.12.12github.com/rancher/rancher 2.11.16Source: https://github.com/rancher/rancher/security/advisories/GHSA-v584-7w32-jwpq
Connected by shared product, vendor, weakness, or advisory.
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