SSH.NET: ScpClient Recursive Download Allows Arbitrary File Write via Server-Controlled SCP Filenames

Date Aug 12, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product NuGet ยท SSH.NET
CVE CVE-2026-48798
High-risk advisory CVE-2026-48798

Summary

SSH.NET: ScpClient Recursive Download Allows Arbitrary File Write via Server-Controlled SCP Filenames

Why it matters

GitHub has published a reviewed security advisory for SSH.NET. Prioritize it with other application dependency updates.

Operator check

Check whether SSH.NET is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.