CVE intelligence

CVE-2026-59846

Vulnerability intelligence

Published Jul 21, 2026Sources checked Sep 12, 2026

3.9LOWCVSS out of 10

What this means

Review the available evidence

CVE-2026-59846 and is rated Low severity with a CVSS score of 3.9. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.1%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-59846?

A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can inject shell metacharacters, exposing environment variables and causing unintended shell behavior.