ultravioletrs Cocos up to 0.8.2 Attested TLS improper authorization

Summaryinfo

A vulnerability, which was classified as critical, was found in ultravioletrs Cocos up to 0.8.2. This affects an unknown function of the component Attested TLS. Executing a manipulation can lead to improper authorization. This vulnerability appears as CVE-2026-92702. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in ultravioletrs Cocos up to 0.8.2 and classified as critical. This vulnerability affects some unknown functionality of the component Attested TLS. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-92702 since 09/16/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 0.9.0 eliminates this vulnerability.

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Productinfo

Vendor

• ultravioletrs

Name

• Cocos

Version

• 0.8.0
• 0.8.1
• 0.8.2

Website

• Product: https://github.com/ultravioletrs/cocos/

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