{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-112377",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-10-19T16:30:42.240Z",
        "datePublished": "2026-10-19T17:26:39.111Z",
        "dateUpdated": "2026-10-20T17:39:42.185Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-10-19T17:26:39.111Z"
            },
            "datePublic": "2026-07-17T00:00:00.000Z",
            "title": "CCC Attestation SIG attested-tls-poc through commit 731ca82 Attestation Relay Attack",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "tags": [
                "unsupported-when-assigned"
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Origin Validation Error",
                            "cweId": "CWE-346",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "CCC-Attestation",
                    "product": "attested-tls-poc",
                    "collectionURL": "https://github.com/CCC-Attestation/attested-tls-poc",
                    "packageURL": "pkg:github/ccc-attestation/attested-tls-poc",
                    "repo": "https://github.com/CCC-Attestation/attested-tls-poc",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "731ca82ed533fc7a1092be980887ae2e34261da2",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "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",
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 9.1,
                        "baseSeverity": "CRITICAL"
                    }
                },
                {
                    "format": "CVSS",
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "NONE",
                        "baseScore": 7.4,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://github.com/CCC-Attestation/attested-tls-poc/pull/58",
                    "tags": [
                        "patch",
                        "technical-description",
                        "issue-tracking"
                    ],
                    "name": "Pull Request #58"
                },
                {
                    "url": "https://github.com/CCC-Attestation/attested-tls-poc/tree/5b6c5374b3fe8b671906c8ab32f6134d9c3da26d/relay-attacks-formal",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "url": "https://github.com/ionut-arm/mbedtls/blob/f4ac7593826a506fc509c83cad73786acab1d442/library/ssl_tls13_generic.c#L430-L436",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "url": "https://datatracker.ietf.org/doc/draft-intra-handshake-fail/",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "url": "https://github.com/muhammad-usama-sardar/intra-handshake.fail",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "url": "https://github.com/CCC-Attestation/attested-tls-poc",
                    "tags": [
                        "product"
                    ]
                },
                {
                    "name": "VulnCheck Advisory: CCC Attestation SIG attested-tls-poc through commit 731ca82 Attestation Relay Attack",
                    "tags": [
                        "third-party-advisory"
                    ],
                    "url": "https://www.vulncheck.com/advisories/ccc-attestation-sig-attested-tls-poc-through-commit-731ca82-attestation-relay-attack"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Muhammad Usama Sardar",
                    "type": "finder"
                }
            ],
            "x_generator": {
                "engine": "vulncheck-endgame"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-20T17:39:34.340105Z",
                                "id": "CVE-2026-112377",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-20T17:39:42.185Z"
                }
            }
        ]
    }
}