{"id":"CVE-2026-6967","revision":"9323a718027f4a84aa5a52dddc256cd7","records":[{"revision":"9323a718027f4a84aa5a52dddc256cd7","observedAt":"2026-10-27T15:46:40.786+00:00","statement":{"source":"nvd","id":"CVE-2026-6967","aliases":[],"title":"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 dele…","description":"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\n\n\nWe recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.","state":0,"publishedAt":"2026-04-24T20:16:29.02+00:00","modifiedAt":"2026-10-26T21:10:00.17+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · ff89ba41-3aa1-4d27-914a-91399e9639e5 · Secondary","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":7.1,"severity":"HIGH"},{"system":"CVSS 3.1 · ff89ba41-3aa1-4d27-914a-91399e9639e5 · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","score":5.9,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://aws.amazon.com/security/security-bulletins/2026-019-aws/","https://crates.io/crates/tough/0.22.0","https://crates.io/crates/tuftool/0.15.0","https://github.com/awslabs/tough/releases/tag/tough-v0.22.0","https://github.com/awslabs/tough/releases/tag/tuftool-v0.15.0","https://github.com/awslabs/tough/security/advisories/GHSA-4v58-8p28-2rq3"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-6967","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Modified","weaknesses":["CWE-345"],"productCriteria":["cpe:2.3:a:amazon:tough:*:*:*:*:*:rust:*:*","cpe:2.3:a:amazon:tuftool:*:*:*:*:*:rust:*:*"],"sourceDates":{"published":"2026-04-24T20:16:29.020","lastModified":"2026-10-26T21:10:00.170"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-6967","identifiers":["CVE-2026-6967"]},"retained":false,"historicalAffected":[]}],"coverage":[]}