CVE WatchJul 15, 2026

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 c

CVSS

9.1

Critical

EPSS

0.4%

p34

KEV

—

Exploit Today

0-100

Published: Jul 15, 2026 · Last modified: Jul 15, 2026 · CWE-22

EPSS · 30d

0.4%EPSS · 30 days0.4%

2026-07-162026-07-19

Technical 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.

Official references

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