CVE-2026-63134: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in cisagov Malcolm
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.
CVE-2026-63134: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in cisagov Malcolm
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.
CVSS v3.1
Score 5.4medium
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-15T16:54:55.817Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7b8c91bf8831d539668d2b
Added to database: 08/11/2026, 20:56:49 UTC
Last updated: 08/11/2026, 20:56:49 UTC
Views: 1
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