What is GHSA-4h4r-q9xg-gfmm?

GHSA-4h4r-q9xg-gfmm is a security advisory published by GitHub Security Advisories with Medium severity. A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs...

Which CVE IDs does GHSA-4h4r-q9xg-gfmm cover?

GHSA-4h4r-q9xg-gfmm covers the following CVE IDs: CVE-2026-59848. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4h4r-q9xg-gfmm?

GHSA-4h4r-q9xg-gfmm has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

GHSA-4h4r-q9xg-gfmmMediumCVSS 5.3

A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs...

Vendor

GitHub Security Advisories

Published

July 21, 2026

Last Modified

July 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-59848 →

📋 Description

A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs that libssh clients keep queued indefinitely, causing unbounded memory growth and client-side denial of service.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-59848
https://access.redhat.com/security/cve/CVE-2026-59848
https://bugzilla.redhat.com/show_bug.cgi?id=2498181
https://github.com/advisories/GHSA-4h4r-q9xg-gfmm