CVE-2026-32591

5.2 MEDIUM

A flaw was found in Red Hat Quay's Proxy Cache configuration feature

Published: 2026-04-08 · Last updated: 2026-06-09

Severity and scoring

CVSS: 5.2 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N
CWE: CWE-918

Affected products

Vendor	Product
redhat	mirror_registry_for_red_hat_openshift, quay

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-32591
[Other]https://access.redhat.com/errata/RHSA-2026:24833
[Vendor advisory]https://access.redhat.com/security/cve/CVE-2026-32591
[Vendor advisory]https://bugzilla.redhat.com/show_bug.cgi?id=2446965

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