CVE-2026-19130
Provider-credential-controller: provider-credential-controller: cross-namespace credential propagation via attacker-controlled copiedfrom labels bypasses authorization
- State
- Published
- Severity
- 5.8 Medium
- Published
- Aug 12, 2026
- Updated
- Sep 29, 2026
- Reserved
- Aug 6, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.8 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N | redhat |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
multicluster engine for Kubernetes 2.10Red Hat |
|
multicluster engine for Kubernetes 2.11Red Hat |
|
multicluster engine for Kubernetes 2.17Red Hat |
|
multicluster engine for Kubernetes 2.6Red Hat |
|
multicluster engine for Kubernetes 2.8Red Hat |
|
multicluster engine for Kubernetes 2.9Red Hat |
|
References
- RHSA-2026:59556vendor-advisory
- RHSA-2026:59557vendor-advisory
- RHSA-2026:59558vendor-advisory
- RHSA-2026:59559vendor-advisory
- RHSA-2026:59579vendor-advisory
- RHSA-2026:59593vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-19130vdb-entry
- RHBZ#2512105issue-tracking
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