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

> CVE-2026-32591: Mirror-registry: quay: server-side request forgery in proxy cache upstream registry configuration. CVSS 5.2 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-32591
Last updated: 2026-09-22T18:17:13Z

- Published: 2026-04-08 17:06 UTC · Updated: 2026-09-22 18:17 UTC · Assigner: redhat
- CVSS: 5.2 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N
- EPSS: 0.33%, 25th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-918

## 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 vendors and products

- Red Hat: mirror registry for Red Hat OpenShift
- Red Hat: mirror registry for Red Hat OpenShift 2
- Red Hat: Red Hat Quay 3.10
- Red Hat: Red Hat Quay 3.12
- Red Hat: Red Hat Quay 3.14
- Red Hat: Red Hat Quay 3.15
- Red Hat: Red Hat Quay 3.16
- Red Hat: Red Hat Quay 3.17
- Red Hat: Red Hat Quay 3.18
- Red Hat: Red Hat Quay 3.9

## Tracked companies

- [Red Hat (incl. Quay.io)](https://rewindex.com/company/red-hat.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-32591)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-32591)
- [https://access.redhat.com/errata/RHSA-2026:24833](https://access.redhat.com/errata/RHSA-2026:24833)
- [https://access.redhat.com/errata/RHSA-2026:40262](https://access.redhat.com/errata/RHSA-2026:40262)
- [https://access.redhat.com/errata/RHSA-2026:41031](https://access.redhat.com/errata/RHSA-2026:41031)
- [https://access.redhat.com/errata/RHSA-2026:41066](https://access.redhat.com/errata/RHSA-2026:41066)
- [https://access.redhat.com/errata/RHSA-2026:42146](https://access.redhat.com/errata/RHSA-2026:42146)
- [https://access.redhat.com/errata/RHSA-2026:42796](https://access.redhat.com/errata/RHSA-2026:42796)
- [https://access.redhat.com/errata/RHSA-2026:43052](https://access.redhat.com/errata/RHSA-2026:43052)
- [https://access.redhat.com/errata/RHSA-2026:48085](https://access.redhat.com/errata/RHSA-2026:48085)
- [https://access.redhat.com/errata/RHSA-2026:70267](https://access.redhat.com/errata/RHSA-2026:70267)
- [https://access.redhat.com/security/cve/CVE-2026-32591](https://access.redhat.com/security/cve/CVE-2026-32591)
- [https://bugzilla.redhat.com/show\_bug.cgi?id=2446965](https://bugzilla.redhat.com/show_bug.cgi?id=2446965)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-32591 · Markdown: https://rewindex.com/cve/CVE-2026-32591.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-32591 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:06.255Z