VULNERABILITY INTELLIGENCE
CVE-2026-63134
CVSS score5.4 MEDIUM
EPSS probability0.42%
CISA KEVNot currently listed
Published2026-08-11
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
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.
Weakness classification
- ics-cert@hq.dhs.gov: CWE-22