CVE-2026-92702
Title: Cocos AI: AMD SEV-SNP attestation freshness bypass
Proof Of Concept
PoC Available for CVE-2026-92702
Vulnerability Summary
CVE-2026-92702: Cocos AI is a confidential computing system for running AI workloads inside trusted execution environments. In versions up to and including 0.8.2, the intra-handshake attested TLS (aTLS) AMD SEV-SNP verification path does not enforce attestation freshness when the expected reportData value is nil, empty, or omitted, leaving the SEV-SNP policy ReportData unset so the verifier accepts unrelated or stale Evidence not bound to the current connection. A relying party that uses this path without an expected reportData as a trust or authorization decision can be induced to trust an unintended attestation context; a supplied non-empty reportData is still validated. The issue is fixed in version 0.9.0.
Impacted Vendors
Analysis in Progress...
Reference Links
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Associated Attack Patterns (CAPEC)
Total: PatternsNo specific attack patterns mapped.
CVE-2026-92702 Exploits & PoCs (Proof Of Concept)
Vulnerability data updated via NVD.
Vulnerability data updated via NVD.
Vulnerability data updated via NVD.
Vulnerability data updated via NVD.
Attack Vector Matrix
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected Stack
No specific products linked.