What’s Vulnerable › Vulnerabilities

CVE-2026-2376: Mirror-registry: quay: quay: server-side request forgery via open redirect vulnerability in web interface

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-12 · updated 2026-11-01
• Weakness: CWE-601

Description

A flaw was found in mirror-registry where an authenticated user can trick the system into accessing unintended internal or restricted systems by providing malicious web addresses. When the application processes these addresses, it automatically follows redirects without verifying the final destination, allowing attackers to route requests to systems they should not have access to.

Affected products

• Red Hat mirror registry for Red Hat OpenShift: all versions
• Red Hat Quay 3: 3.0.0
• Red Hat mirror registry for Red Hat OpenShift: all versions
• Red Hat mirror registry for Red Hat OpenShift 2: all versions
• Red Hat Quay 3: all versions

References

• https://access.redhat.com/security/cve/CVE-2026-2376
• https://bugzilla.redhat.com/show_bug.cgi?id=2439117
• https://github.com/quay/quay/pull/5074

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