CVE-2026-63134: 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…

PriorityP432medium5.4CVSS 3.1

AVNACLPRLUINSUCNILAL

EPSS

0.37%

28.6th percentile

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
cisagov	malcolm	< 26.07.0	26.07.0

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