Critical 9.1Published Sep 18, 2026

CVE-2026-92702Cocos AI: Intra-handshake attested TLS implementation can accept Evidence with nil, empty, or omitted reportData in the AMD SEV-SNP path

Updated under an hour ago (2026-10-19 07:50 UTC)

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It affects ultravioletrs cocos. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for ultravioletrs cocos

Exploited in the last 30 days

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.

CVSS: 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-346
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ultravioletrs cocos ultravioletrs:cocos (from the name)	before 0.9.0	CNA record

References

https://github.com/ultravioletrs/cocos/security/advisories/GHSA-4r6g-mp48-j2rwx-refsource-confirm
https://github.com/ultravioletrs/cocos/pull/582x-refsource-misc
https://github.com/ultravioletrs/cocos/commit/80bf813c48300f02259b338b91f844c71be582eax-refsource-misc
https://github.com/ultravioletrs/cocos/releases/tag/v0.9.0x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.