CVE-2026-92701 (GCVE-0-2026-92701)
Vulnerability from cvelistv5 – Published: 2026-09-18 17:06 – Updated: 2026-10-13 20:08
VLAI
EPSS
VEX
Title
Cocos AI: Intra-handshake attested TLS implementation is vulnerable to session-misbinding attacks for Intel TDX verifier path
Summary
Cocos AI is a confidential computing system for AI. In Cocos AI 0.8.2 and earlier, VerifTeeAttestation in the Intel TDX aTLS verifier receives an expected current-session value but does not apply it to TdQuoteBodyPolicy.ReportData before validating TDX QuoteV4 evidence. The verifier can consequently accept structurally valid evidence containing mismatched or reused REPORT_DATA for the current TLS session, causing the relying party to release application data or make a trust or authorization decision for an unrelated 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)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:53 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ultravioletrs/cocos/security/a… | x_refsource_CONFIRM |
| https://github.com/ultravioletrs/cocos/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ultravioletrs | cocos |
Affected:
< 0.9.0
|
guessed |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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