๐Ÿ” CVE Alert

CVE-2026-90445

MEDIUM 6.5

Path Traversal in Malcolm

CVSS Score
6.5
EPSS Score
0.5%
EPSS Percentile
42th

An interface that accepts file uploads from authenticated users extracts the contents of uploaded archives without validating that extracted file paths remain within the intended destination directory. This allows an authenticated attacker to craft an archive whose entries traverse outside the destination directory, causing the extraction process to write files to arbitrary locations with the privileges of that process. This could allow an attacker to inject fabricated records into the system's stored data or tamper with application configuration.

CWE CWE-22
Vendor cisa
Product malcolm
Published Sep 11, 2026
Last Updated Oct 2, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Affected Versions

CISA / Malcolm
0 < v26.06.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
raw.githubusercontent.com: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01