{"id":"CVE-2026-43637","summary":"Cornac \u003c 2.6.0 Path Traversal via _extract_archive() in download.py","details":"Cornac before 2.6.0 contains a path traversal (Tar Slip) vulnerability that allows attackers to write arbitrary files outside the intended cache directory by supplying a crafted TAR archive containing ../ sequences, absolute paths, or symlink/hardlink entries to the _extract_archive() function in cornac/utils/download.py. Attackers can trigger this vulnerability through the built-in dataset loaders, which automatically download and extract archives, causing archive.extractall() to write files to arbitrary locations on the filesystem accessible to the running process.","modified":"2026-07-17T03:46:25.228523698Z","published":"2026-07-15T13:54:38.892Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43637.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-22"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43637.json"},{"type":"ADVISORY","url":"https://github.com/PreferredAI/cornac/releases/tag/v2.6.0"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43637"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/cornac-path-traversal-via-extract-archive-in-download-py"},{"type":"REPORT","url":"https://github.com/PreferredAI/cornac/pull/709"},{"type":"FIX","url":"https://github.com/PreferredAI/cornac/commit/8a50be72c11569b6747c6b96d6e31a0a1962f1a8"},{"type":"PACKAGE","url":"https://github.com/PreferredAI/cornac"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/preferredai/cornac","events":[{"introduced":"0"},{"fixed":"42a327f26241790e99f56284e89c3ab903b69c45"},{"fixed":"8a50be72c11569b6747c6b96d6e31a0a1962f1a8"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.6.0"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["v2.5.0","v2.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43637.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"}]}