{"answers":{"affected":"4 open source packages ship an affected version, including tough and tuftool. It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-6967 in the wild and no public exploit code.","fix":"Upgrade tough to 0.22.0 or later.","what":"CVE-2026-6967 is a high-severity missing authorization vulnerability in AWS tough, published on 24 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-6967 and fix it if it is affected.\n\nWhat it is: CVE-2026-6967 is a high-severity missing authorization vulnerability in AWS tough, published on 24 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-6967 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- tough (crates.io): affected from 0.9.0; fixed in 0.22.0\n- tough (crates.io): affected from 0.9.0; fixed in 0.22.0\n- tuftool (crates.io): affected all versions; fixed in 0.15.0\n- tuftool (crates.io): affected all versions; fixed in 0.15.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-6967/ (Markdown: https://insights.sbomify.com/CVE-2026-6967/index.md)","id":"CVE-2026-6967","markdown":"https://insights.sbomify.com/CVE-2026-6967/index.md","name":"CVE-2026-6967","record":{"aliases":["GHSA-4v58-8p28-2rq3"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"TUF Rust library","requires_auth":"low_privilege","summary":"Authenticated users with delegated signing authority can bypass integrity checks and poison the local metadata cache in the tough library.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMZN","cpe":[{"product":"tough","vendor":"amazon"},{"product":"tuftool","vendor":"amazon"}],"cvss":{"score":7.1,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"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\nWe recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.","ecosystems":["crates.io"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Missing Delegated Metadata Validation in awslabs/tough","id":"CVE-2026-6967","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":4,"n_references":6,"next":{"headline":"Multiple Path Traversal Variants in awslabs/tough","id":"CVE-2026-6968"},"packages":[{"ecosystem":"crates.io","fixed":["0.22.0"],"introduced":["0.9.0"],"last_affected":[],"package":"tough","purl":null,"source":"GHSA-4v58-8p28-2rq3"},{"ecosystem":"crates.io","fixed":["0.22.0"],"introduced":["0.9.0"],"last_affected":[],"package":"tough","purl":"pkg:cargo/tough","source":"GHSA-4v58-8p28-2rq3"},{"ecosystem":"crates.io","fixed":["0.15.0"],"introduced":["0"],"last_affected":[],"package":"tuftool","purl":null,"source":"GHSA-4v58-8p28-2rq3"},{"ecosystem":"crates.io","fixed":["0.15.0"],"introduced":["0"],"last_affected":[],"package":"tuftool","purl":"pkg:cargo/tuftool","source":"GHSA-4v58-8p28-2rq3"}],"prev":{"headline":"Signature Threshold Bypass in awslabs/tough Delegated Roles","id":"CVE-2026-6966"},"products":["tough","tuftool"],"published":"2026-04-24","related":[{"cvss_score":8.6,"headline":"Improper verification of signature threshold in tough","id":"CVE-2020-15093","kev_date_added":null,"published":"2020-07-09"},{"cvss_score":8.2,"headline":"Improper sanitization of target names in tough","id":"CVE-2021-41149","kev_date_added":null,"published":"2021-10-19"},{"cvss_score":8.2,"headline":"Improper sanitization of delegated role names in tough","id":"CVE-2021-41150","kev_date_added":null,"published":"2021-10-19"},{"cvss_score":7.1,"headline":"Multiple Path Traversal Variants in awslabs/tough","id":"CVE-2026-6968","kev_date_added":null,"published":"2026-04-24"},{"cvss_score":7,"headline":"Signature Threshold Bypass in awslabs/tough Delegated Roles","id":"CVE-2026-6966","kev_date_added":null,"published":"2026-04-24"},{"cvss_score":5.7,"headline":"Root metadata version not validated in tough","id":"CVE-2025-2885","kev_date_added":null,"published":"2025-03-27"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-20","vendors":["AWS"]},"summary":"Authenticated users with delegated signing authority can bypass integrity checks and poison the local metadata cache in the tough library.","url":"https://insights.sbomify.com/CVE-2026-6967/"}