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Vulnerability · Published Apr 8, 2026 · Assigned by redhat

CVE-2026-32591Mirror-registry: quay: server-side request forgery in proxy cache upstream registry configuration

Medium 5.2

In plain English

A medium-severity server-side request forgery in mirror registry for Red Hat OpenShift from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 3.1)5.2Medium
Exploit odds (30 days)0.3%top 72.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Quay 3.10 see references
Red Hat Red Hat Quay 3.12 see references
Red Hat Red Hat Quay 3.12 see references
Red Hat Red Hat Quay 3.14 see references
Red Hat Red Hat Quay 3.15 see references
Red Hat Red Hat Quay 3.16 see references
Red Hat Red Hat Quay 3.17 see references
Red Hat Red Hat Quay 3.18 see references
Red Hat Red Hat Quay 3.9 see references
Red Hat mirror registry for Red Hat OpenShift see references
Red Hat mirror registry for Red Hat OpenShift 2 see references

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

References