SEPTEMBER 9, 2026
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Case File

CVE-2026-43637

CRITICAL · CVSS 9.1 EPSS 0.43% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-15 · Last synced 2026-08-14

CyberRota Analysis

AI-Generated

Cornac versions prior to 2.6.0 are vulnerable to a critical path traversal vulnerability that enables attackers to write arbitrary files outside the designated cache directory by exploiting crafted TAR archives. This flaw can be triggered via built-in dataset loaders, potentially allowing unauthorized file access or manipulation on the filesystem. Organizations using affected versions should prioritize patching this vulnerability to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-43637
Severity
CRITICAL
CVSS
9.1
EPSS
0.43%

Original NVD 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.