Is CVE-2026-105447 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-105447 being exploited in the wild.

How severe is CVE-2026-105447?

Medium severity, with a CVSS score of 5.5, published 5 October 2026.

Is there a fix for CVE-2026-105447?

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-2026-105447 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2026-105447?

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-2026-105447: Red Hat Quay privilege escalation in build trigger API

CVE-2026-105447 · Severity: medium · CVSS 5.5 · Published 2026-10-05

Quay is a container image registry that allows organizations to store and manage Docker images. A flaw in how the application handles build trigger requests allows read-only administrators to retrieve repository write tokens through the API, bypassing their access restrictions and enabling them to push malicious container images to private repositories. This privilege escalation requires the attacker to already be authenticated as an administrative user.

Technologies: Red Hat Quay. Vendors: Red Hat.

Quick answers

Is CVE-2026-105447 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-105447 being exploited in the wild.
How severe is CVE-2026-105447?: Medium severity, with a CVSS score of 5.5, published 5 October 2026.
Which products and versions are affected?: Red Hat Quay.
Is there a fix for CVE-2026-105447?: 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-2026-105447 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-105447?: 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

The vulnerability is an incorrect authorization flaw (CWE-863) in Quay's build trigger API endpoint that exposes webhook tokens with repository write permissions to authenticated users with global read-only superuser role. An authenticated attacker can query the API to retrieve these delegate tokens and use them to push arbitrary container images to private repositories, bypassing read-only restrictions. The flaw requires high-privilege authentication but grants unintended write access.

Affected products

Red Hat Quay

Timeline

2026-10-05: disclosed

References

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