enclave-os-virtual: RA-TLS challenge certificates were not bound to the TLS session

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-108268",
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "dateUpdated": "2026-10-09T21:13:33.595Z",
    "dateReserved": "2026-10-09T17:33:15.410Z",
    "datePublished": "2026-10-09T21:13:33.595Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M",
        "dateUpdated": "2026-10-09T21:13:33.595Z"
      },
      "title": "enclave-os-virtual: RA-TLS challenge certificates were not bound to the TLS session",
      "descriptions": [
        {
          "lang": "en",
          "value": "Enclave OS Virtual runs container workloads inside confidential virtual machines with end-to-end attestation. Prior to tdx-v0.2.43 and tdx-gpu-v0.6.27, the TDX/GPU RA-TLS certificate issuer placed the certificate public-key hash and client nonce in quote ReportData but omitted a value bound to the active TLS session. An attacker who obtained an enclave TLS private key could relay a genuine quote onto another connection, causing a relying party to accept an attacker-terminated connection as the attested enclave. This issue is fixed in tdx-v0.2.43 and tdx-gpu-v0.6.27."
        }
      ],
      "affected": [
        {
          "vendor": "Privasys",
          "product": "enclave-os-virtual",
          "versions": [
            {
              "version": "< tdx-v0.2.43",
              "status": "affected"
            },
            {
              "version": "< tdx-gpu-v0.6.27",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-346: Origin Validation Error",
              "cweId": "CWE-346",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/Privasys/enclave-os-virtual/security/advisories/GHSA-p5fp-g94g-g9m9",
          "name": "https://github.com/Privasys/enclave-os-virtual/security/advisories/GHSA-p5fp-g94g-g9m9",
          "tags": [
            "x_refsource_CONFIRM"
          ]
        },
        {
          "url": "https://github.com/Privasys/enclave-os-virtual/commit/9a6be91e29f2b6738d0b77c33cd1ad5cd3d8a347",
          "name": "https://github.com/Privasys/enclave-os-virtual/commit/9a6be91e29f2b6738d0b77c33cd1ad5cd3d8a347",
          "tags": [
            "x_refsource_MISC"
          ]
        },
        {
          "url": "https://github.com/Privasys/enclave-os-virtual/releases/tag/tdx-gpu-v0.6.27",
          "name": "https://github.com/Privasys/enclave-os-virtual/releases/tag/tdx-gpu-v0.6.27",
          "tags": [
            "x_refsource_MISC"
          ]
        },
        {
          "url": "https://github.com/Privasys/enclave-os-virtual/releases/tag/tdx-v0.2.43",
          "name": "https://github.com/Privasys/enclave-os-virtual/releases/tag/tdx-v0.2.43",
          "tags": [
            "x_refsource_MISC"
          ]
        },
        {
          "url": "https://privasys.org/blog/binding-attestation-to-the-tls-session",
          "name": "https://privasys.org/blog/binding-attestation-to-the-tls-session",
          "tags": [
            "x_refsource_MISC"
          ]
        }
      ],
      "metrics": [
        {}
      ]
    }
  }
}