CVE-2026-32591

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.

CVSS v3 5.2 MEDIUM

5.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-32591	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2446965	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:-:::::::*
	cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:2.0:::::::*
	cpe:2.3:a:redhat:quay:3.0.0:::::::*

History

21 Apr 2026, 23:20

Type	Values Removed	Values Added
First Time		Redhat Redhat mirror Registry For Red Hat Openshift Redhat quay
CPE		cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:-:::::::* cpe:2.3:a:redhat:quay:3.0.0:::::::* cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:2.0:::::::*
References	~~() https://access.redhat.com/security/cve/CVE-2026-32591 -~~	() https://access.redhat.com/security/cve/CVE-2026-32591 - Vendor Advisory
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2446965 -~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2446965 - Issue Tracking, Vendor Advisory

08 Apr 2026, 18:26

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-08 18:26

Updated : 2026-04-21 23:20

NVD link : CVE-2026-32591

Mitre link : CVE-2026-32591

CVE.ORG link : CVE-2026-32591

JSON object : View

Products Affected

redhat

mirror_registry_for_red_hat_openshift
quay

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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