CVE-2026-92702 (GCVE-0-2026-92702)

Vulnerability from cvelistv5 – Published: 2026-09-18 17:02 – Updated: 2026-10-13 20:08
VLAI
Title
Cocos AI: Intra-handshake attested TLS implementation can accept Evidence with nil, empty, or omitted reportData in the AMD SEV-SNP path
Summary
Cocos AI is a confidential computing system for AI. In Cocos AI 0.8.2 and earlier, VerifyAttestationReportTLS in the AMD SEV-SNP verifier sets Policy.ReportData only when its caller supplies non-empty expected reportData. A relying-party integration that passes nil or empty expected reportData while relying on that value for current-session freshness can therefore accept SEV-SNP evidence unrelated to the current connection and make a trust, authorization, or application-data release decision for an unintended attestation context. This issue was fixed in Cocos AI 0.9.0 by removing the affected verifier path as part of the migration to post-handshake attestation.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 15:05 UTC
CWE
  • CWE-346 - Origin Validation Error
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7814 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ultravioletrs cocos Affected: < 0.9.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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