Critical Red Hat Quay Flaw Lets Attackers Read and Overwrite All Private Container Images in a Registry

Summary by Cyber Security News12 Nov 2026, 17:27 CET

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A critical flaw in Red Hat Quay allows an attacker who can access a Quay registry to read and overwrite private container images in every repository. Quay enables anonymous access by default, and while it is enabled, the attacker needs no account. When it is off, anyone with a valid account can still exploit the flaw, Red Hat said yesterday.

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