{"id":"CVE-2026-92701","title":"Cocos AI is a confidential computing system for running AI workloads inside trusted execution environments","summary":"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) Intel TDX verification path does not copy the expe…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-346","CWE-354"],"vendor":"ultravioletrs","product":"cocos","affected":["cocos < 0.9.0"],"published":"2026-09-18","updated":"2026-09-21","sourceUpdated":"2026-09-21T15:17:35.313","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92701","references":[{"url":"https://github.com/ultravioletrs/cocos/releases/tag/v0.9.0","label":"security-advisories@github.com"},{"url":"https://github.com/ultravioletrs/cocos/security/advisories/GHSA-4px3-wj2x-xx47","label":"security-advisories@github.com"},{"url":"https://github.com/ultravioletrs/cocos/security/advisories/GHSA-4px3-wj2x-xx47","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00221,"epssPercentile":0.12925,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-18T19:53:17.098944Z"},"ingestedAt":"2026-09-18T17:46:41.553Z","exploits":{"github":1,"githubRepos":["https://github.com/muhammad-usama-sardar/intra-handshake-fail"],"checkedAt":"2026-09-22T07:12:05.616Z"},"slug":"CVE-2026-92701","body":"## Overview\n\nCocos 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) Intel TDX verification path does not copy the expected current-session freshness value into the TDX quote-body policy before quote validation, so structurally valid TDX QuoteV4 Evidence is accepted without checking that its REPORT_DATA field matches the reportData expected for the current session. A relying party using this path can therefore accept Evidence with a mismatched or reused reportData and release application data after the handshake, enabling session-misbinding to an unintended attestation context. The issue is fixed in version 0.9.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":62,"depthScoreParts":{"impact":50.1,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":207505,"id":"CVE-2026-92701","ts":1789764763156,"field":"exploit_available","old":"false","new":"true"}]}