What is GHSA-fvwj-j79q-57v7?

GHSA-fvwj-j79q-57v7 is a security advisory published by GitHub Security Advisories with Low severity. A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can...

Which CVE IDs does GHSA-fvwj-j79q-57v7 cover?

GHSA-fvwj-j79q-57v7 covers the following CVE IDs: CVE-2026-59846. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-fvwj-j79q-57v7?

GHSA-fvwj-j79q-57v7 has a CVSS v3 base score of 3.9, published by GitHub Security Advisories.

GHSA-fvwj-j79q-57v7LowCVSS 3.9

A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can...

Vendor

GitHub Security Advisories

Published

July 21, 2026

Last Modified

July 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-59846 →

📋 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.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-59846
https://access.redhat.com/security/cve/CVE-2026-59846
https://bugzilla.redhat.com/show_bug.cgi?id=2498179
https://github.com/advisories/GHSA-fvwj-j79q-57v7