CVE-2026-92702 Security feature bypass in cocos
Attackers can bypass attestation checks in Cocos AI by exploiting nil reportData handling, potentially leading to unauthorized trust decisions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-92702?
CVE-2026-92702 is a critical vulnerability in ultravioletrs cocos, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-346
Which versions are affected by CVE-2026-92702?
How do I fix CVE-2026-92702?
No fix has been published for CVE-2026-92702 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-92702 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-92702 exists.
Sources
Also known as GHSA-4r6g-mp48-j2rw.