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.
History

Thu, 09 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Wed, 08 Apr 2026 17:45:00 +0000

Type Values Removed Values 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.
Title Mirror-registry: quay: server-side request forgery in proxy cache upstream registry configuration
First Time appeared Redhat
Redhat mirror Registry
Redhat quay
Weaknesses CWE-918
CPEs cpe:/a:redhat:mirror_registry:1
cpe:/a:redhat:mirror_registry:2
cpe:/a:redhat:quay:3
Vendors & Products Redhat
Redhat mirror Registry
Redhat quay
References
Metrics cvssV3_1

{'score': 5.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-04-08T17:06:58.222Z

Updated: 2026-04-08T17:06:58.222Z

Reserved: 2026-03-12T14:39:53.657Z

Link: CVE-2026-32591

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-08T18:26:00.107

Modified: 2026-04-08T21:26:13.410

Link: CVE-2026-32591

cve-icon Redhat

Severity : Important

Publid Date: 2026-04-08T00:00:00Z

Links: CVE-2026-32591 - Bugzilla