CVE-2026-92702
9.1 CRITICALpublic exploit availablePublished 2026-09-18 · Updated 2026-09-24
AI risk analysis
- Summary
- The flaw in Cocos AI allows a relying party to be induced to trust an unintended attestation context due to the lack of attestation freshness enforcement.
- Exploitability
- Exploitation is moderately hard as it requires the absence of expected reportData and the use of the aTLS AMD SEV-SNP verification path without an expected reportData.
- Blast radius
- If exploited, this could lead to unauthorized access or execution of unrelated or stale evidence, compromising the integrity of the trusted execution environment.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to version 0.9.0 or later.
Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-346
Public exploit & PoC references
- https://github.com/ultravioletrs/cocos/commit/80bf813c48300f02259b338b91f844c71be582ea
- https://github.com/ultravioletrs/cocos/pull/582
- https://github.com/ultravioletrs/cocos/releases/tag/v0.9.0
- https://github.com/ultravioletrs/cocos/security/advisories/GHSA-4r6g-mp48-j2rw
- https://github.com/ultravioletrs/cocos/security/advisories/GHSA-4r6g-mp48-j2rw
All references
- https://github.com/ultravioletrs/cocos/commit/80bf813c48300f02259b338b91f844c71be582ea
- https://github.com/ultravioletrs/cocos/pull/582
- https://github.com/ultravioletrs/cocos/releases/tag/v0.9.0
- https://github.com/ultravioletrs/cocos/security/advisories/GHSA-4r6g-mp48-j2rw
- https://github.com/ultravioletrs/cocos/security/advisories/GHSA-4r6g-mp48-j2rw
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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