Malcolm's Path Traversal in Archive Extraction Allows Arbitrary Directory Creation
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
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-63134
Malcolm
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "cisagov",
"product": "Malcolm",
"versions": [
{
"status": "affected",
"version": "< 26.07.0"
},
{
"status": "unaffected",
"version": "26.07.0"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-63134
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #8173 · Revision 1
- Added to Heist Feed
- Publisher date