CVE-2026-90444

High

Description

A file-transfer interface that requires valid credentials accepts attacker-controlled filenames without restricting shell metacharacters. An automated process later constructs and runs a system command using the uploaded file's name, allowing an authenticated attacker to embed and execute arbitrary operating system commands with the privileges of that process. This allows an attacker to read and modify ingested log data, and could provide a foothold for further movement within the internal network.

SeverityHigh
CVSS8.8
Exploit probability—
ProductMalcolm
PublishedSep 11, 2026
First seenSep 11, 2026

How to fix

Affected products

ProductAffected versionsFixed in
CISA Malcolmv < v26.06.0v26.06.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2026-90444 · Malcolm · Dark Radar