preferredai/cornac · Security
Cornac: Path Traversal via _extract_archive() in download.py
- GHSA ID
- GHSA-rrh3-cwwj-g5mg
- CVE ID
- CVE-2026-43637
- Severity
- high
- Published
- Updated
- CVSS
- 9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- CVSS v3
- 9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- CVSS v4
- 8.8 · 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
Description
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.
CWEs
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-43637 ↗
- https://github.com/PreferredAI/cornac/pull/709 ↗
- https://github.com/PreferredAI/cornac/commit/8a50be72c11569b6747c6b96d6e31a0a1962f1a8 ↗
- https://github.com/PreferredAI/cornac/releases/tag/v2.6.0 ↗
- https://www.vulncheck.com/advisories/cornac-path-traversal-via-extract-archive-in-download-py ↗
- https://github.com/advisories/GHSA-rrh3-cwwj-g5mg ↗