๐Ÿ” CVE Alert

CVE-2026-92702

CRITICAL 9.1

Cocos AI: Intra-handshake attested TLS implementation can accept Evidence with nil, empty, or omitted reportData in the AMD SEV-SNP path

CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-346
Vendor ultravioletrs
Product cocos
Published Sep 18, 2026
Last Updated Oct 13, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Affected Versions

ultravioletrs / cocos
< 0.9.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/ultravioletrs/cocos/security/advisories/GHSA-4r6g-mp48-j2rw github.com: https://github.com/ultravioletrs/cocos/pull/582 github.com: https://github.com/ultravioletrs/cocos/commit/80bf813c48300f02259b338b91f844c71be582ea github.com: https://github.com/ultravioletrs/cocos/releases/tag/v0.9.0