{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-6967",
        "assignerOrgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
        "state": "PUBLISHED",
        "assignerShortName": "AMZN",
        "dateReserved": "2026-04-24T16:15:46.781Z",
        "datePublished": "2026-04-24T19:41:43.460Z",
        "dateUpdated": "2026-04-24T20:13:20.016Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
                "shortName": "AMZN",
                "dateUpdated": "2026-04-24T19:59:27.098Z"
            },
            "title": "Missing Delegated Metadata Validation in awslabs/tough",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-345",
                            "description": "CWE-345: Insufficient Verification of Data Authenticity",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-141",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-141: Cache Poisoning"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "AWS",
                    "product": "tough",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "0.22.0"
                        }
                    ],
                    "defaultStatus": "unaffected"
                },
                {
                    "vendor": "AWS",
                    "product": "tuftool",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "0.15.0"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Missing expiration, hash, and length enforcement in delegated metadata validation in awslabs/tough before tough-v0.22.0 allows remote authenticated users with delegated signing authority to bypass TUF specification integrity checks for delegated targets metadata and poison the local metadata cache, because load_delegations does not apply the same validation checks as the top-level targets metadata path.\n\nWe recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "<p>Missing expiration, hash, and length enforcement in delegated metadata validation in awslabs/tough before tough-v0.22.0 allows remote authenticated users with delegated signing authority to bypass TUF specification integrity checks for delegated targets metadata and poison the local metadata cache, because load_delegations does not apply the same validation checks as the top-level targets metadata path.</p><p>We recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.</p>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://aws.amazon.com/security/security-bulletins/2026-019-aws/",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://github.com/awslabs/tough/releases/tag/tough-v0.22.0",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/awslabs/tough/releases/tag/tuftool-v0.15.0",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://crates.io/crates/tough/0.22.0",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://crates.io/crates/tuftool/0.15.0",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/awslabs/tough/security/advisories/GHSA-4v58-8p28-2rq3",
                    "tags": [
                        "third-party-advisory"
                    ]
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV3_1": {
                        "version": "3.1",
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "LOW",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 5.9,
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L"
                    }
                },
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "LOW",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "HIGH",
                        "baseScore": 7.1,
                        "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:L"
                    }
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "x_generator": {
                "engine": "Vulnogram 1.0.1"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-24T20:13:04.619106Z",
                                "id": "CVE-2026-6967",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-04-24T20:13:20.016Z"
                }
            }
        ]
    }
}