CVE-2026-19130

Summary

A flaw was found in the provider-credential-controller component of multicluster-engine (MCE). An attacker with specific permissions on the hub cluster, and knowledge of a prior credential value, could exploit an authorization bypass vulnerability. By manipulating copiedFrom labels, the attacker could intercept newly rotated provider credentials, leading to unauthorized information disclosure. This allows access to sensitive credentials that should otherwise be protected.

Affected Software

VendorProductVersion RangeStatus
Red Hatmulticluster engine for Kubernetes 2.11787176886 < *unaffected
Red Hatmulticluster engine for Kubernetes 2.111787239595 < *unaffected
Red Hatmulticluster engine for Kubernetes 2.171786664288 < *unaffected
Red Hatmulticluster engine for Kubernetes 2.61787260821 < *unaffected
Red Hatmulticluster engine for Kubernetes 2.81787259099 < *unaffected
Red Hatmulticluster engine for Kubernetes 2.91787176716 < *unaffected

Weaknesses

  • CWE-639: Authorization Bypass Through User-Controlled Key

Workarounds

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References