CVE-2026-32591

[CVE catalog]

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. mirror-registry: quay: server-side request forgery in proxy cache upstream registry configuration Exploitation requires the attacker to be authenticated as an organization administrator. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Severity

Medium · CVSS 5.2CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N

Published

Apr 8, 2026, 12:00:00 AM UTC

Source

[NVD] · [CVE record]

EPSS

0.33% · Oct 27, 2026

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  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "mirror_registry_for_red_hat_openshift",
      "ecosystem": "cpe",
      "fixed_version": ""
    },
    {
      "name": "quay",
      "ecosystem": "cpe",
      "fixed_version": ""
    },
    {
      "name": "mirror_registry_for_red_hat_openshift",
      "ranges": [],
      "ecosystem": "cpe",
      "fixed_version": "",
      "provider_record_id": "NVD-CVE-2026-32591"
    },
    {
      "name": "quay",
      "ranges": [],
      "ecosystem": "cpe",
      "fixed_version": "",
      "provider_record_id": "NVD-CVE-2026-32591"
    }
  ]
}