[GHSA-rrh3-cwwj-g5mg] Cornac before 2.6.0 contains a path traversal (Tar Slip)... - #9188
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August 23, 2026 01:43
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This advisory is unreviewed and has no package mapping, so it does not surface to users of the affected package.
The repository PreferredAI/cornac publishes the PyPI package
cornac.The advisory names _extract_archive() in cornac/utils/download.py. The fix commit (8a50be72, PR #709, "Fix CWE-22 path traversal (Tar Slip) in dataset archive extraction") modifies exactly that file, replacing a bare archive.extractall(extract_path) with a _safe_extract() helper that validates each member (rejecting traversal, absolute paths, symlinks and hardlinks). The commit description matches the advisory text.
I verified the boundary against the published PyPI wheels:
This matches the "before 2.6.0" wording in the description and the release tag already listed in the references (https://github.com/PreferredAI/cornac/releases/tag/v2.6.0).
Proposed range: introduced 0, fixed 2.6.0.
The CVSS v4 vector was rewritten to omit the trailing Not Defined (X) metrics, which the form's validator rejects. This is semantically identical per the CVSS v4.0 specification and does not change the severity assessment. CVSS v3 left untouched.
The advisory also had no title. The proposed one follows the database's naming convention and reflects the existing CWE-22 classification.