CVE-2026-32591
Mirror-registry: quay: server-side request forgery in proxy cache upstream registry configuration
CVSS Score
5.2
EPSS Score
0.0%
EPSS Percentile
7th
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.
| CWE | CWE-918 |
| Vendor | red hat |
| Product | mirror registry for red hat openshift |
| Published | Apr 8, 2026 |
| Last Updated | Apr 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
Red Hat / mirror registry for Red Hat OpenShift
All versions affected Red Hat / mirror registry for Red Hat OpenShift 2
All versions affected Red Hat / Red Hat Quay 3
All versions affected Red Hat / Red Hat Quay 3
All versions affected References
Credits
Red Hat would like to thank Antony Di Scala and Michael Whale for reporting this issue.