{"id":"CVE-2026-112377","revision":"8e7bab81a49b40678ecc57a1fd15f4e3","records":[{"revision":"8e7bab81a49b40678ecc57a1fd15f4e3","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-112377","aliases":[],"title":"CCC Attestation SIG attested-tls-poc through commit 731ca82 Attestation Relay Attack","description":"CCC Attestation SIG attested-tls-poc through commit 731ca82 fails to bind early attestation Evidence to the TLS connection, allowing attackers to relay valid Evidence from a genuine attester. Attackers holding an extracted attested TLS private key can forward the relying party's nonce to a genuine attester and replay its Evidence to impersonate the attested workload and intercept data.","state":0,"publishedAt":"2026-10-19T17:26:39.111+00:00","modifiedAt":"2026-10-20T17:39:42.185+00:00","affected":[{"ecosystem":"https://github.com/CCC-Attestation/attested-tls-poc","name":"attested-tls-poc","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"CCC-Attestation\",\n                    \"product\": \"attested-tls-poc\",\n                    \"collectionURL\": \"https://github.com/CCC-Attestation/attested-tls-poc\",\n                    \"packageURL\": \"pkg:github/ccc-attestation/attested-tls-poc\",\n                    \"repo\": \"https://github.com/CCC-Attestation/attested-tls-poc\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"731ca82ed533fc7a1092be980887ae2e34261da2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":9.1,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4,"severity":"HIGH"}],"references":["https://github.com/CCC-Attestation/attested-tls-poc/pull/58","https://github.com/CCC-Attestation/attested-tls-poc/tree/5b6c5374b3fe8b671906c8ab32f6134d9c3da26d/relay-attacks-formal","https://github.com/ionut-arm/mbedtls/blob/f4ac7593826a506fc509c83cad73786acab1d442/library/ssl_tls13_generic.c#L430-L436","https://datatracker.ietf.org/doc/draft-intra-handshake-fail/","https://github.com/muhammad-usama-sardar/intra-handshake.fail","https://github.com/CCC-Attestation/attested-tls-poc","https://www.vulncheck.com/advisories/ccc-attestation-sig-attested-tls-poc-through-commit-731ca82-attestation-relay-attack"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112377","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-112377","identifiers":["CVE-2026-112377"]},"retained":false,"historicalAffected":[]}],"coverage":[]}