CVE WatchSep 11, 2026

CVE-2026-90444

A file-transfer interface that requires valid credentials accepts attacker-controlled filenames without restricting shell metacharacters. An

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

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0-100

Published: Sep 11, 2026 · Last modified: Sep 11, 2026 · CWE-78

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

raw.githubusercontent.comhttps://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json

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