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CVE-2026-80462 is a critical missing-authentication vulnerability in the Chef Automate API gateway and identity-validation path. Under specific, undisclosed conditions, an unauthenticated remote actor can bypass intended identity validation and obtain elevated access to protected Chef Automate functionality. The issue is associated with gateway handling of client-certificate identity information and certificate-subject parsing, although a complete technical root cause has not been confirmed publicly.
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No public exploit code observed for this vulnerability.
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14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An authentication-bypass vulnerability in Chef Automate. The referenced material suggests it concerns handling of client-certificate-related HTTP/gRPC metadata headers (including X-Client-Cert and Grpc-Metadata-Grpcgateway-X-Client-Cert) by automate-gateway, but it explicitly states the issue was not tested against a live instance.
An authentication and authorization vulnerability in the Chef Automate API gateway and identity-validation path that could allow an unauthenticated actor to obtain elevated access to protected Chef Automate functions under specific conditions.
A critical missing-authentication vulnerability (CWE-306) in the Chef Automate API gateway and identity-validation path that can allow an unauthenticated network attacker to obtain elevated access to protected Chef Automate functionality under specific conditions. The listed CVSS v3.1 vector is 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.