CVE-2026-43637

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.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/PreferredAI/cornac/commit/8a50be72c11569b6747c6b96d6e31a0a1962f1a8
https://github.com/PreferredAI/cornac/pull/709
https://github.com/PreferredAI/cornac/releases/tag/v2.6.0
https://www.vulncheck.com/advisories/cornac-path-traversal-via-extract-archive-in-download-py

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-15 14:18

Updated : 2026-07-15 21:02

NVD link : CVE-2026-43637

Mitre link : CVE-2026-43637

CVE.ORG link : CVE-2026-43637

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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