---
id: CVE-2026-92702
title: Cocos AI is a confidential computing system for AI
summary: >-
  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…
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
vendor: ultravioletrs
product: cocos
affected:
  - cocos < 0.9.0
published: '2026-09-18'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T21:19:57.640'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92702'
references:
  - url: >-
      https://github.com/ultravioletrs/cocos/commit/80bf813c48300f02259b338b91f844c71be582ea
    label: security-advisories@github.com
  - url: 'https://github.com/ultravioletrs/cocos/pull/582'
    label: security-advisories@github.com
  - 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-4r6g-mp48-j2rw
    label: security-advisories@github.com
  - url: >-
      https://github.com/ultravioletrs/cocos/security/advisories/GHSA-4r6g-mp48-j2rw
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00258
epssPercentile: 0.17394
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-22T15:05:11.173074Z'
ingestedAt: '2026-09-18T17:46:41.553Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.