CVE-2026-15927

A flaw was found in Red Hat Quay's repository-level mirror configuration feature. The POST and PUT handlers in endpoints/api/mirror.py accept an external_reference parameter without SSRF validation, unlike the organization-level mirror handlers which apply validate_external_registry_url(). A repository administrator can supply a crafted hostname that causes the Quay mirror worker to make requests via Skopeo to internal network services, cloud metadata endpoints, or other resources not intended to be reachable from the Quay application.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:50931
https://access.redhat.com/errata/RHSA-2026:52968
https://access.redhat.com/errata/RHSA-2026:53520
https://access.redhat.com/errata/RHSA-2026:54395
https://access.redhat.com/errata/RHSA-2026:63307
https://access.redhat.com/security/cve/CVE-2026-15927
https://bugzilla.redhat.com/show_bug.cgi?id=2501256

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-21 06:16

Updated : 2026-09-09 23:16

NVD link : CVE-2026-15927

Mitre link : CVE-2026-15927

CVE.ORG link : CVE-2026-15927

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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