{"id":"CVE-2026-6968","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-6968","generatedAt":"2026-10-28T00:20:02.535Z","title":"Incomplete path traversal fixes in awslabs/tough before tough-v0.22.0 allow remote authenticated users with delegated signing authority to write files outside intended output directories via absolute target names in copy_target/link_target, symlinked…","description":"Incomplete path traversal fixes in awslabs/tough before tough-v0.22.0 allow remote authenticated users with delegated signing authority to write files outside intended output directories via absolute target names in copy_target/link_target, symlinked parent directories in save_target, or symlinked metadata filenames in SignedRole::write, because write paths trust the joined destination path without post-resolution containment verification.\n\n\n\nWe recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.","published":"2026-04-24T20:16:29.000Z","lastModified":"2026-10-26T21:10:00.000Z","status":"Modified","sourceIdentifier":"ff89ba41-3aa1-4d27-914a-91399e9639e5","cvss":{"version":"4.0","score":7.1,"severity":"HIGH","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/M"},"cwe":["CWE-22"],"affected":["amazon/tough","amazon/tuftool"],"epss":{"score":0.00533,"percentile":0.44724,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-019-aws/","tags":["Vendor Advisory"],"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://crates.io/crates/tough/0.22.0","tags":["Product"],"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://crates.io/crates/tuftool/0.15.0","tags":["Product"],"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://github.com/awslabs/tough/releases/tag/tough-v0.22.0","tags":["Release Notes"],"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://github.com/awslabs/tough/releases/tag/tuftool-v0.15.0","tags":["Release Notes"],"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://github.com/awslabs/tough/security/advisories/GHSA-v57p-gppj-p9vg","tags":["Vendor Advisory"],"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-6968","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}