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EUVD-2026-257135

2026-10-03T10:53:50.604481+00:00

EUVD-2026-257135

fkie_cve-2023-32199

2026-10-03T10:53:50.604516+00:00

A vulnerability has been identified within Rancher Manager, where after removing a custom GlobalRole that gives administrative access or the corresponding binding, the user still retains access to clusters. This only affects custom Global Roles that have a * on * in * rule for resources or have a * on * rule for non-resource URLs

GHSA-j4vr-pcmw-hx59 — Rancher user retains access to clusters despite Global Role removal

2026-10-03T10:53:50.604548+00:00

Affected: Go: github.com/rancher/rancher

### Impact A vulnerability has been identified within Rancher Manager, where after removing a custom GlobalRole that gives administrative access or the corresponding binding, the user still retains access to clusters. This only affects custom Global Roles that: - Have a `*` on `*` in `*` rule for resources - Have a `*` on `*` rule for non-resource URLs

For example ```yaml apiVersion: management.cattle.io/v3 kind: GlobalRole metadata: name: custom-admin rules: - apiGroups: - '*' resources: - '*' verbs: - '*' - nonResourceURLs: - '*' verbs: - '*' ```

Specifically: - When a user is bound to a custom admin `GlobalRole`, a corresponding `ClusterRoleBinding` is created on all clusters that binds them to the cluster-admin `ClusterRole`. - When such a `GlobalRole` or the `GlobalRoleBinding` (e.g., when the user is unassigned from this role in UI) is deleted, the `ClusterRoleBinding` that binds them to the cluster-admin ClusterRole stays behind.

This issue allows a user to continue having access to clusters after they have been unassigned from the custom admin global role or the role has been deleted.

Please consult the associated [MITRE ATT&CK - Technique - Account Access Removal](https://attack.mitre.org/techniques/T1531/) for further information about this category of attack.

### Patches This vulnerability is addressed by removing the corresponding `ClusterRoleBindings` whenever the admin `GlobalRole` or its `GlobalRoleBindings…

gsd-2023-32199

2026-10-03T10:53:50.604596+00:00

gsd-2023-32199

openSUSE-SU-2025:15710-1 — govulncheck-vulndb-0.0.20251105T184115-1.1 on GA media

2026-10-03T10:53:50.604610+00:00

govulncheck-vulndb-0.0.20251105T184115-1.1 on GA media

WID-SEC-W-2025-2395 — Rancher Manager: Mehrere Schwachstellen

2026-10-03T10:53:50.604643+00:00

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Rancher ausnutzen, um Sicherheitsvorkehrungen zu umgehen und vertrauliche Informationen offenzulegen.