CVE-2026-17107

Published: Lug 24, 2026 Last Modified: Lug 24, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,5
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

A flaw was found in the cluster-proxy service-proxy component used in Red Hat Advanced Cluster Management for Kubernetes (RHACM) and multicluster-engine (MCE). The service-proxy appends impersonation group headers to proxied requests without first removing caller-supplied values, and the spoke ServiceAccount holds unrestricted impersonation permissions. An authenticated hub principal can inject an Impersonate-Group header to escalate to cluster-admin on every managed cluster.

441

Unintended Proxy or Intermediary ('Confused Deputy')

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Non-Repudiation Access Control
Potential Impacts:
Gain Privileges Or Assume Identity Hide Activities Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
View CWE Details
https://access.redhat.com/security/cve/CVE-2026-17107
https://access.redhat.com/security/cve/CVE-2026-17107
https://bugzilla.redhat.com/show_bug.cgi?id=2506771
https://bugzilla.redhat.com/show_bug.cgi?id=2506771