CVE-2026-119345

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    CVE-2026-119345

    Published: 5 Nov 2026Last Modified: 7 Nov 2026

    Summary: Cocos AI Intra-handshake attested TLS implementation is vulnerable to TOCTOU Attacks

    Details: Cocos AI is a confidential computing system for AI. Prior to 0.9.0, Cocos AI performs attestation only once when an attested TLS connection is established. An attacker who can modify the attester's workload code, memory-backed state, configuration, or attached devices after that check can keep the existing connection open while the peer continues trusting stale initial Evidence. This gap is especially significant for long-lived connections because the verifier has no mechanism to detect the changed state. This issue is fixed in version 0.9.0.

    References: https://github.com/ultravioletrs/cocos/releases/tag/v0.9.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119345.json, https://github.com/ultravioletrs/cocos/security/advisories/GHSA-ghwv-vrp2-2975, https://nvd.nist.gov/vuln/detail/CVE-2026-119345, https://github.com/ultravioletrs/cocos/commit/80bf813c48300f02259b338b91f844c71be582ea, https://github.com/ultravioletrs/cocos/pull/582

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -b44780df95a34cf0906c6af9d06e94f56e4811f2

    Affected versions

    v0.8.2
    v0.8.1
    v0.8.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-119345 | CVE-DB