{"affected":[{"product":"python-tuf","source":"CNA: GitHub_M","vendor":"theupdateframework","versions":[{"status":"affected","version":"< 7.0.0"}]},{"defaultStatus":"unaffected","ecosystem":"PyPI","packageName":"tuf","product":"tuf","source":"OSV GHSA-qp9x-wp8f-qgjj","vendor":"","versions":[{"status":"affected","version":"0.10.0","versionType":"PyPI"},{"status":"affected","version":"0.10.1","versionType":"PyPI"},{"status":"affected","version":"0.10.2","versionType":"PyPI"},{"status":"affected","version":"0.11.0","versionType":"PyPI"},{"status":"affected","version":"0.11.1","versionType":"PyPI"},{"status":"affected","version":"0.11.2.dev1","versionType":"PyPI"},{"status":"affected","version":"0.11.2.dev2","versionType":"PyPI"},{"status":"affected","version":"0.11.2.dev3","versionType":"PyPI"},{"status":"affected","version":"0.11.dev0","versionType":"PyPI"},{"status":"affected","version":"0.12.0","versionType":"PyPI"},{"status":"affected","version":"0.12.1","versionType":"PyPI"},{"status":"affected","version":"0.12.2","versionType":"PyPI"},{"status":"affected","version":"0.12.dev0","versionType":"PyPI"},{"status":"affected","version":"0.12.dev1","versionType":"PyPI"},{"status":"affected","version":"0.12.dev2","versionType":"PyPI"},{"status":"affected","version":"0.13.0","versionType":"PyPI"},{"status":"affected","version":"0.14.0","versionType":"PyPI"},{"status":"affected","version":"0.15.0","versionType":"PyPI"},{"status":"affected","version":"0.16.0","versionType":"PyPI"},{"status":"affected","version":"0.17.0","versionType":"PyPI"},{"status":"affected","version":"0.18.0","versionType":"PyPI"},{"status":"affected","version":"0.18.1","versionType":"PyPI"},{"status":"affected","version":"0.19.0","versionType":"PyPI"},{"status":"affected","version":"0.20.0","versionType":"PyPI"},{"status":"affected","version":"0.7.5","versionType":"PyPI"},{"status":"affected","version":"0.9.8","versionType":"PyPI"},{"status":"affected","version":"0.9.9","versionType":"PyPI"},{"status":"affected","version":"1.0.0","versionType":"PyPI"},{"status":"affected","version":"1.1.0","versionType":"PyPI"},{"status":"affected","version":"2.0.0","versionType":"PyPI"},{"status":"affected","version":"2.1.0","versionType":"PyPI"},{"status":"affected","version":"3.0.0","versionType":"PyPI"},{"status":"affected","version":"3.1.0","versionType":"PyPI"},{"status":"affected","version":"3.1.1","versionType":"PyPI"},{"status":"affected","version":"4.0.0","versionType":"PyPI"},{"status":"affected","version":"5.0.0","versionType":"PyPI"},{"status":"affected","version":"5.1.0","versionType":"PyPI"},{"status":"affected","version":"6.0.0","versionType":"PyPI"},{"events":[{"introduced":"0"},{"fixed":"7.0.0"}],"status":"unknown","version":"0","versionType":"ECOSYSTEM"}]}],"cveId":"CVE-2026-123806","cwes":["CWE-178"],"description":"python-tuf is a Python reference implementation of The Update Framework (TUF). Prior to 7.0.0, DelegatedRole._is_target_in_pathpattern in tuf/api/_payload.py uses fnmatch.fnmatch, which applies os.path.normcase before matching and makes delegation path authorization case-insensitive on Windows. When a TUF repository has path-based delegations that differ only by case and an attacker-controlled role is visited before the legitimate role, ngclient can accept an attacker-provided target from the wrong delegation for a requested path. Linux and macOS clients are not affected because their path normalization does not change case. This issue is fixed in 7.0.0.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":4,"severity":"medium","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}],"modifiedAt":1794256204187,"publishedAt":1794255525481,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/theupdateframework/python-tuf/security/advisories/GHSA-qp9x-wp8f-qgjj"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/theupdateframework/python-tuf/commit/8ed4414946041030b264871ac41b929cf15774a5"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/theupdateframework/python-tuf/releases/tag/v7.0.0"},{"source":"OSV / GitHub Security Advisories","tags":["advisory"],"url":"https://github.com/advisories/GHSA-qp9x-wp8f-qgjj"},{"source":"OSV / GitHub Security Advisories","tags":["osv"],"url":"https://osv.dev/vulnerability/GHSA-qp9x-wp8f-qgjj"}],"remediation":[{"kind":"fix","source":"OSV GHSA-qp9x-wp8f-qgjj","text":"tuf (PyPI): OSV reports a fixed version 7.0.0. Check the advisory for supported release branches.","url":"https://github.com/advisories/GHSA-qp9x-wp8f-qgjj"}],"revision":"9788afcdd95d3510d8f2b3b8e3f64a34dc6dd50cdca234554ac0618e0ff8de49","sources":[{"modifiedAt":1794255525481,"name":"CNA: GitHub_M","retrievedAt":1794258569167,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123806"},{"modifiedAt":1794256204187,"name":"OSV / GitHub Security Advisories","retrievedAt":1794258569958,"url":"https://osv.dev/vulnerability/GHSA-qp9x-wp8f-qgjj"}],"ssvc":null,"status":"published","title":"python-tuf: Platform-dependent delegation path matching","updatedAt":1794258569958}