{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-123806", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-11-06T15:27:56.226Z", "datePublished": "2026-11-09T20:18:45.481Z", "dateUpdated": "2026-11-09T20:18:45.481Z"}, "containers": {"cna": {"title": "python-tuf: Platform-dependent delegation path matching", "problemTypes": [{"descriptions": [{"cweId": "CWE-178", "lang": "en", "description": "CWE-178: Improper Handling of Case Sensitivity", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/theupdateframework/python-tuf/security/advisories/GHSA-qp9x-wp8f-qgjj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/theupdateframework/python-tuf/security/advisories/GHSA-qp9x-wp8f-qgjj"}, {"name": "https://github.com/theupdateframework/python-tuf/commit/8ed4414946041030b264871ac41b929cf15774a5", "tags": ["x_refsource_MISC"], "url": "https://github.com/theupdateframework/python-tuf/commit/8ed4414946041030b264871ac41b929cf15774a5"}, {"name": "https://github.com/theupdateframework/python-tuf/releases/tag/v7.0.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/theupdateframework/python-tuf/releases/tag/v7.0.0"}], "affected": [{"vendor": "theupdateframework", "product": "python-tuf", "versions": [{"version": "< 7.0.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-09T20:18:45.481Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-qp9x-wp8f-qgjj", "discovery": "UNKNOWN"}}}}

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