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CVE-2026-73268

Cluster-curator-controller: cluster-curator-controller: spec.install.overridejob allows arbitrary job spec injection

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • multicluster-engine/cluster-curator-controller-rhel9

    Version range not reported

  • multicluster-engine/cluster-curator-controller-rhel9

    Version range not reported

  • multicluster-engine/cluster-curator-controller-rhel9

    Version range not reported

  • multicluster-engine/cluster-curator-controller-rhel9

    Version range not reported

  • multicluster-engine/cluster-curator-controller-rhel9

    Version range not reported

  • multicluster-engine/cluster-curator-controller-rhel9

    Version range not reported

References 8

access.redhat.com

bugzilla.redhat.com