
Docker Hub's Two-Year Critical Flaw: How CVE-2026-105445 Exposed Container Supply Chains
Docker fixed a critical vulnerability (CVE-2026-105445) in Docker Hub that allowed attackers to push, pull, or delete container images as other users. The flaw, dubbed GhostPat, existed for over two years from August 2024 to September 2026 and stemmed from improper handling of personal access tokens (PATs) during account-to-organization conversions. Attackers could create a token, convert their account to an organization, and designate another user as owner, thereby gaining registry access under that user's identity. While Docker found no evidence of exploitation after reviewing 304,000 pushes, the vulnerability posed significant supply chain risks by enabling malicious image publication under legitimate names. This incident highlights the growing sophistication of supply chain attacks targeting container registries, coinciding with increased focus on software supply chain security following recent high-profile compromises and new regulatory requirements for software bill of materials tracking.
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