{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "731ca82ed533fc7a1092be980887ae2e34261da2"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "731ca82ed533fc7a1092be980887ae2e34261da2"
            }
          ],
          "repo": "https://github.com/CCC-Attestation/attested-tls-poc",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-367"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/129xxx/CVE-2026-129092.json"
  },
  "details": "CCC Attestation SIG attested-tls-poc through commit 731ca82 contains a time-of-check time-of-use vulnerability because Evidence is appraised only once during the TLS handshake, without post-handshake re-attestation. Attackers with local access to the attesting endpoint can alter workload code, data, configuration, or attached devices like GPUs while peers keep trusting the original Evidence.",
  "id": "CVE-2026-129092",
  "modified": "2026-11-14T02:30:54.470855987Z",
  "published": "2026-11-13T15:11:13.522Z",
  "references": [
    {
      "type": "ARTICLE",
      "url": "https://doi.org/10.1145/3779208.3785387"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/CCC-Attestation/attested-tls-poc"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/CCC-Attestation/formal-spec-id-crisis"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/129xxx/CVE-2026-129092.json"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/ionut-arm/mbedtls/blob/f4ac7593826a506fc509c83cad73786acab1d442/library/ssl_tls13_generic.c#L430-L436"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-129092"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/ccc-attestation-sig-attested-tls-poc-through-commit-731ca82-toctou-via-handshake-only-attestation"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "CCC Attestation SIG attested-tls-poc through commit 731ca82 TOCTOU via Handshake-Only Attestation"
}