CVE-2026-15927
CVE-2026-15927: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium6.8
Medium [CVE-2026-15927] repo-level mirror accepts external_reference without URL validation
CVE-2026-15927Source published Source updated
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. This risk is limited to actions performed by an authenticated administrator. Red Hat severity: Important — CVSS 6.8 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N). Weakness: CWE-918. Affected Red Hat products: Red Hat Quay 3.10; Red Hat Quay 3.12; Red Hat…
- Affected products in this advisory
- Red Hat Quay 3.10
- Red Hat Quay 3.12
- Red Hat Quay 3.14
- Red Hat Quay 3.15
4 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- quay/quay-rhel8:1786395065
- quay/quay-rhel8:1786170635
- quay/quay-rhel8:1788593843
- quay/quay-rhel8:1788191755
10 more entries in the full advisory.
- Mitigation guidance
- Restrict network egress from Quay mirror worker pods/containers using network policies or firewall rules to block access to internal network ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) and cloud metadata endpoints (169.254.169.254, metadata.google.internal). Limit repository creation and admin privileges to trusted users via Quay's RBAC configuration. If repository-level mirroring is not required, disable the feature or restrict access to the mirror API endpoints through a reverse proxy.
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