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This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
A flaw was found in Red Hat Quay's Proxy Cache configuration feature. When an organization administrator configures an upstream registry for proxy caching, Quay makes a network connection to the specified registry hostname without verifying that it points to a legitimate external service. An attacker with organization administrator privileges could supply a crafted hostname to force the Quay server to make requests to internal network services, cloud infrastructure endpoints, or other resources that should not be accessible from the Quay application.
Metrics
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[{"vendor":"Red Hat","product":"Red Hat Quay 3.17","defaultStatus":"affected","cpes":["cpe:/a:redhat:quay:3.17::el9"]},{"vendor":"Red Hat","product":"mirror registry for Red Hat OpenShift","defaultStatus":"affected","cpes":["cpe:/a:redhat:mirror_registry:1"]},{"vendor":"Red Hat","product":"mirror registry for Red Hat OpenShift 2","defaultStatus":"affected","cpes":["cpe:/a:redhat:mirror_registry:2"]},{"vendor":"Red Hat","product":"Red Hat Quay 3","defaultStatus":"affected","cpes":["cpe:/a:redhat:quay:3"]}]
[{"vendor":"Red Hat","product":"Red Hat Quay 3.17","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"quay/quay-rhel9","cpes":["cpe:/a:redhat:quay:3.17::el9"],"versions":[{"version":"1780604033","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"mirror registry for Red Hat OpenShift","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift/mirror-registry-rhel8","cpes":["cpe:/a:redhat:mirror_registry:1"]},{"vendor":"Red Hat","product":"mirror registry for Red Hat OpenShift 2","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift/mirror-registry-rhel8","cpes":["cpe:/a:redhat:mirror_registry:2"]},{"vendor":"Red Hat","product":"Red Hat Quay 3","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"quay/quay-rhel8","cpes":["cpe:/a:redhat:quay:3"]}]
CVE Modified by Red Hat, Inc.6/09/2026 10:16:38 AM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2026:24833
CVE Modified by Red Hat, Inc.6/03/2026 2:16:32 AM
Action
Type
Old Value
New Value
Removed
Reference
https://access.redhat.com/errata/RHSA-2026:21017
CVE Modified by Red Hat, Inc.6/02/2026 7:16:35 PM
Action
Type
Old Value
New Value
Removed
Reference
https://access.redhat.com/errata/RHSA-2026:19375
CVE Modified by Red Hat, Inc.5/27/2026 11:16:42 PM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2026:21017
CVE Modified by Red Hat, Inc.5/20/2026 12:16:51 AM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2026:19375
Initial Analysis by NIST4/21/2026 7:20:00 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Added
CPE Configuration
OR
*cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:-:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:2.0:*:*:*:*:*:*:*
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2026-32591 Types: Vendor Advisory
Added
Reference Type
Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2446965 Types: Issue Tracking, Vendor Advisory
New CVE Received from Red Hat, Inc.4/08/2026 2:26:00 PM
Action
Type
Old Value
New Value
Added
Description
A flaw was found in Red Hat Quay's Proxy Cache configuration feature. When an organization administrator configures an upstream registry for proxy caching, Quay makes a network connection to the specified registry hostname without verifying that it points to a legitimate external service. An attacker with organization administrator privileges could supply a crafted hostname to force the Quay server to make requests to internal network services, cloud infrastructure endpoints, or other resources that should not be accessible from the Quay application.