{"id":"CVE-2026-100689","summary":"GitPython before 3.1.62 Path Traversal via gitmodules path","details":"GitPython before 3.1.62 does not validate the `path` field read from an untrusted .gitmodules file when updating submodules. While a prior fix (GHSA-hmq2-w58f-27jc) added Submodule._validated_name() to constrain the `name` field, and GitPython's own containment guard Submodule._to_relative_path() is applied in add() and move(), Submodule.update() derives the absolute checkout location from the raw `path` value without that guard. A .gitmodules entry containing directory traversal components (e.g., path = ../../../tmp/escaped) can therefore cause directories to be created via os.makedirs() outside the repository working tree, populated from the submodule URL on the clone path, and removed via shutil.rmtree() when force_remove is used. Exploitation requires an application flow that updates submodules at a non-HEAD commit (such as a historical-commit API); the common clone-then-update flow re-derives the path from a canonical tree lookup and is not affected. The issue is fixed in GitPython 3.1.62.","aliases":["GHSA-59cr-6r3x-644w"],"modified":"2026-09-28T03:48:15.763351233Z","published":"2026-09-26T13:23:48.759Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-22"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100689.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100689.json"},{"type":"ADVISORY","url":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-59cr-6r3x-644w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100689"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/gitpython-before-3.1.62-path-traversal-via-gitmodules-path"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gitpython-developers/gitpython","events":[{"introduced":"0"},{"fixed":"db47516dac750c5968b8f6d388b18712c355df50"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"3.1.62"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["3.1.57","3.1.56","3.1.55","3.1.54","3.1.53","3.1.52","3.1.51","3.1.50","3.1.49","3.1.48","3.1.47","3.1.44","3.1.43","3.1.42","3.1.41","3.1.40","3.1.38","3.1.35","3.1.34","3.1.33","3.1.32","3.1.31","3.1.30","3.1.29","3.1.28","3.1.27","3.1.26","3.1.25","3.1.24","3.1.23","3.1.22","3.1.20","3.1.19","3.1.18","3.1.17","3.1.16","3.1.13","3.1.12","3.1.11","3.1.10","3.1.9","3.1.8","3.1.7","3.1.6","3.1.5","3.1.4","3.1.3","3.1.2","3.1.1","3.1.0","3.0.9","3.0.8","3.0.7","3.0.6","3.0.5","3.0.4","3.0.3","3.0.2","3.0.1","2.1.13","3.0.0","2.1.12","2.1.11","2.1.10","2.1.9","2.1.8","2.1.6","2.1.5","2.1.4","2.1.3","2.1.2","2.1.1","2.1.0","2.0.9","winerr_show","2.0.8","2.0.7","2.0.6","2.0.5","2.0.4","2.0.3","2.0.2","2.0.1","2.0.0","0.3.2.1","1.0.2","0.3.7","1.0.1","1.0.0","0.3.6","0.3.5","0.3.4","0.3.3","0.3.2","0.3.2-RC1","0.3.1-beta2","0.3.1-beta1","0.3.0-beta2","0.3.0-beta1","0.2.0-beta1","0.1.6","0.1.5","0.1.4","0.1.4-pre"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100689.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}