CVE-2026-59846

LowCVSS 3.9/10Last modified Sep 1, 2026

Description

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.

Metrics

CVSS 3.1 3.9/10CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-78CWE-77

Affected software

No affected versions have been published.

Timeline

Published
Jul 21, 2026
Last modified
Sep 1, 2026
NVD status
Modified

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CVE-2026-59846: Low severity, CVSS 3.9 | Vulnix