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CVE-2026-15927

Quay: mirror-registry: ssrf: repo-level mirror accepts external_reference without url validation

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

Summary

A flaw was found in Red Hat Quay's repository-level mirror configuration feature. The POST and PUT handlers in endpoints/api/mirror.py accept an external_reference parameter without SSRF validation, unlike the organization-level mirror handlers which apply validate_external_registry_url(). A repository administrator can supply a crafted hostname that causes the Quay mirror worker to make requests via Skopeo to internal network services, cloud metadata endpoints, or other resources not intended to be reachable from the Quay application.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • quay/quay-rhel8

    Version range not reported

  • quay/quay-rhel8

    Version range not reported

  • quay/quay-rhel8

    Version range not reported

  • quay/quay-rhel8

    Version range not reported

  • quay/quay-rhel9

    Version range not reported

  • quay/quay-rhel9

    Version range not reported

  • quay/quay-rhel8

    Version range not reported

  • openshift/mirror-registry-rhel8

    Version range not reported

References 9

access.redhat.com

bugzilla.redhat.com