AUGUST 15, 2026
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Case File

CVE-2026-63134

MEDIUM · CVSS 5.4 EPSS 0.25% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-11 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

Malcolm's `safe-extract.py` script is vulnerable to directory traversal attacks due to improper handling of directory entries, allowing malicious archives to create directories outside the intended extraction path. This can lead to unauthorized file system access and potential data compromise. Users of Malcolm prior to version 26.07.0 should prioritize updating to the latest version to mitigate this risk.

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-2026-63134
Severity
MEDIUM
CVSS
5.4
EPSS
0.25%

Original NVD Description

Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, `safe-extract.py` protects file extraction with libarchive's secure flags, but creates directory entries with a raw `os.makedirs(os.path.join(dest, entry.pathname))` that has no traversal protection. An uploaded malicious archive containing a directory entry with a `../` sequence or an absolute path causes the filebeat processing container to create directories outside the intended extraction directory. Version 26.07.0 fixes the issue.