Is CVE-2026-85471 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-85471 being exploited in the wild.

How severe is CVE-2026-85471?

Medium severity, with a CVSS score of 6.4, published 12 October 2026.

Is there a fix for CVE-2026-85471?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-85471 attacked?

It is attacked over the network.

Am I affected by CVE-2026-85471?

Check whether you run Red Hat Quay. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-85471: Quay webhook hostname blacklist bypass leading to SSRF

CVE-2026-85471 · Severity: medium · CVSS 6.4 · Published 2026-10-12

Quay is a container image registry used by enterprises to store and manage Docker images. An authenticated repository administrator can bypass security controls designed to prevent webhook notifications from reaching internal systems, allowing them to send requests to cloud metadata services or internal network resources. This could expose sensitive information such as cloud credentials or internal service configurations.

Technologies: Red Hat Quay. Vendors: Red Hat.

Quick answers

Is CVE-2026-85471 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-85471 being exploited in the wild.
How severe is CVE-2026-85471?: Medium severity, with a CVSS score of 6.4, published 12 October 2026.
Which products and versions are affected?: Red Hat Quay.
Is there a fix for CVE-2026-85471?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-85471 attacked?: It is attacked over the network.
Am I affected by CVE-2026-85471?: Check whether you run Red Hat Quay. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

Quay's webhook notification feature lacks proper IP address resolution validation in its hostname blacklist implementation, allowing an authenticated repository administrator to bypass blocklist restrictions via DNS or URL manipulation techniques. The vulnerability permits Server-Side Request Forgery (SSRF) attacks targeting internal cluster services or cloud metadata endpoints. An attacker must have existing repository administrator credentials; exploitation does not permit arbitrary HTTP methods or full response payload capture, limiting information leakage primarily to error logs.

Affected products

Red Hat Quay

Timeline

2026-10-12: disclosed

References

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