{"id":"CVE-2026-108268","summary":"enclave-os-virtual: RA-TLS challenge certificates were not bound to the TLS session","details":"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.","aliases":["GHSA-p5fp-g94g-g9m9"],"modified":"2026-10-11T02:46:57.970591060Z","published":"2026-10-09T21:13:33.595Z","database_specific":{"cwe_ids":["CWE-346"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108268.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/Privasys/enclave-os-virtual/releases/tag/tdx-gpu-v0.6.27"},{"type":"WEB","url":"https://github.com/Privasys/enclave-os-virtual/releases/tag/tdx-v0.2.43"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108268.json"},{"type":"ADVISORY","url":"https://github.com/Privasys/enclave-os-virtual/security/advisories/GHSA-p5fp-g94g-g9m9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108268"},{"type":"FIX","url":"https://github.com/Privasys/enclave-os-virtual/commit/9a6be91e29f2b6738d0b77c33cd1ad5cd3d8a347"},{"type":"ARTICLE","url":"https://privasys.org/blog/binding-attestation-to-the-tls-session"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/privasys/enclave-os-virtual","events":[{"introduced":"0"},{"fixed":"7c66ce4bc6450a76e52d4225e24004cec5523272"},{"fixed":"7cfe6274f8e64b3e0499a37797e80aacb503839e"},{"fixed":"9a6be91e29f2b6738d0b77c33cd1ad5cd3d8a347"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"tdx-v0.2.43"},{"fixed":"tdx-gpu-v0.6.27"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["tdx-v0.2.35","tdx-v0.2.34","tdx-v0.2.33","tdx-gpu-v0.6.26-dev","tdx-v0.2.32-dev","tdx-v0.2.32","tdx-gpu-v0.6.25","tdx-v0.2.31","tdx-gpu-v0.6.24","tdx-gpu-v0.6.23","tdx-v0.2.30-dev","tdx-v0.2.29","tdx-gpu-v0.6.22","tdx-gpu-v0.6.21","tdx-v0.2.28","tdx-gpu-v0.6.20-dev","tdx-gpu-v0.6.20","tdx-v0.2.27-dev","tdx-gpu-v0.6.19-dev","tdx-v0.2.26-dev","tdx-v0.2.25-dev","tdx-v0.2.24-dev","tdx-v0.2.23-dev","tdx-gpu-v0.6.18-dev","tdx-v0.2.22-dev","tdx-gpu-v0.6.17-dev","tdx-gpu-v0.6.16-dev","tdx-v0.2.21-dev","tdx-v0.2.20-dev","tdx-v0.2.20","tdx-v0.2.19-dev","tdx-v0.2.19","tdx-v0.2.18-dev","tdx-v0.2.18","tdx-v0.2.17","tdx-v0.2.16","tdx-v0.2.15","tdx-v0.2.14","tdx-gpu-v0.6.15","tdx-gpu-v0.6.14","tdx-gpu-v0.6.13","tdx-gpu-v0.6.12","tdx-v0.2.13","tdx-gpu-v0.6.11","tdx-v0.2.12","tdx-v0.2.11","tdx-gpu-v0.6.10","tdx-v0.2.10","tdx-gpu-v0.6.9","tdx-v0.2.9","tdx-gpu-v0.6.8","tdx-gpu-v0.6.7","tdx-v0.2.8","tdx-gpu-v0.6.6","tdx-gpu-v0.6.5","tdx-v0.2.7","tdx-gpu-v0.6.4","tdx-v0.2.6","tdx-gpu-v0.6.3","tdx-v0.2.5","tdx-gpu-v0.6.2","tdx-v0.2.4","tdx-gpu-v0.6.1","tdx-gpu-v0.6.0","tdx-v0.2.3","tdx-gpu-v0.5.5","tdx-gpu-v0.5.4","tdx-v0.2.2","tdx-gpu-v0.5.3","tdx-v0.2.1","tdx-gpu-v0.5.2","tdx-gpu-v0.5.1","tdx-gpu-v0.5.0","tdx-v0.2.0","tdx-gpu-v0.4.0","tdx-gpu-v0.3.6","tdx-gpu-v0.3.5","tdx-gpu-v0.3.4","tdx-gpu-v0.3.2","tdx-gpu-v0.3.1","tdx-gpu-v0.3.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108268.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}]}