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CVE-2026-66788

Lighthouse: lighthouse: arbitrary namespace injection via attacker-controlled broker label

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 Lighthouse. A remote attacker, by compromising a spoke cluster, can exploit a vulnerability where the destination namespace for resource injection is derived from an attacker-controlled label or annotation on the broker object. This allows the attacker to inject unauthorized EndpointSlices and ServiceImports into any namespace on peer clusters, including critical system namespaces like kube-system and openshift-*. This could lead to privilege escalation or other forms of system compromise within the cluster.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • rhacm2/lighthouse-agent-rhel9

    Version range not reported

  • rhacm2/lighthouse-coredns-rhel9

    Version range not reported

  • rhacm2/subctl-rhel9

    Version range not reported

  • rhacm2/submariner-rhel9-operator

    Version range not reported

  • rhacm2/lighthouse-agent-rhel9

    Version range not reported

  • rhacm2/lighthouse-coredns-rhel9

    Version range not reported

  • rhacm2/subctl-rhel9

    Version range not reported

  • rhacm2/submariner-rhel9-operator

    Version range not reported

References 4

access.redhat.com

bugzilla.redhat.com