{"id":"CVE-2026-6968","aliases":["EUVD-2026-25629","GHSA-v57p-gppj-p9vg"],"status":"published","title":"Multiple Path Traversal Variants in awslabs/tough","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.","severity":{"version":"4.0","score":7.1,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00533,"percentile":0.45494,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2026-04-24T19:44:44Z","modified":"2026-11-07T02:48:35Z","products":[{"vendor":"amazon","product":"tough"},{"vendor":"amazon","product":"tuftool"},{"vendor":"aws","product":"tough"},{"vendor":"aws","product":"tuftool"}],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-019-aws/","tags":["vendor-advisory","Vendor Advisory","advisory"]},{"url":"https://github.com/awslabs/tough/releases/tag/tough-v0.22.0","tags":["patch","Release Notes","fix"]},{"url":"https://github.com/awslabs/tough/releases/tag/tuftool-v0.15.0","tags":["patch","Release Notes","fix"]},{"url":"https://crates.io/crates/tough/0.22.0","tags":["patch","Product","fix"]},{"url":"https://crates.io/crates/tuftool/0.15.0","tags":["patch","Product","fix"]},{"url":"https://github.com/awslabs/tough/security/advisories/GHSA-v57p-gppj-p9vg","tags":["third-party-advisory","Vendor Advisory","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6968.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6968","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-6968","title":"Multiple Path Traversal Variants in awslabs/tough","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.","status":"published","published":"2026-04-24T19:44:44.835Z","modified":"2026-10-20T18:26:03.243Z","cvss":[{"version":"4.0","score":7.1,"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","level":"high","assessor":"cna"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T13:49:53.818886Z"}],"euvd":[{"id":"EUVD-2026-25629","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.","status":"published","published":"2026-04-24T19:44:44Z","modified":"2026-10-20T18:26:03Z","cvss":[{"version":"4.0","score":7.1,"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","level":"high"}],"updated_at":"2026-11-02T16:59:43.145678Z"}],"nvd":[{"id":"CVE-2026-6968","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.","status":"published","published":"2026-04-24T20:16:29.17Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"4.0","score":7.1,"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","level":"high","assessor":"secondary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:16.252509Z"}],"osv":[{"id":"CVE-2026-6968","title":"Multiple Path Traversal Variants in awslabs/tough","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.","status":"published","published":"2026-04-24T19:44:44.835Z","modified":"2026-11-07T02:48:35.426680713Z","cvss":[{"version":"4.0","score":7.1,"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","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-07T03:08:09.473992Z"}]}}