CVE-2026-19130 (GCVE-0-2026-19130)

Vulnerability from cvelistv5 – Published: 2026-08-12 20:46 – Updated: 2026-08-25 20:39
VLAI
Title
Provider-credential-controller: provider-credential-controller: cross-namespace credential propagation via attacker-controlled copiedfrom labels bypasses authorization
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.
Severity
5.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 22:13 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:59556 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59593 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-19130 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2512105 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat multicluster engine for Kubernetes 2.11 Unaffected: 1787239595 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.11::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.17 Unaffected: 1786664288 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.17::el9
Create a notification for this product.
Date Public
2026-08-12 18:00
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.