rust-russh: Russh is a Rust SSH client & server library
CVE-2026-48108 is fixed in rust-russh on 1 platform by DEBIAN-CVE-2026-48108 (version 0.64.1-1), released June 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Russh is a Rust SSH client & server library. From version 0.34.0-beta.1 to before version 0.61.0, russh did not enforce the SSH identification-string rules as deliberately as OpenSSH. In particular, the server-side identification reader used the same permissive path as the client, allowing pre-banner lines from clients, and the reader did not enforce a bounded number of pre-banner lines. For a library server built on russh, this could allow a remote peer to hold connection setup resources in the cleartext pre-authentication phase with malformed identification input that should have been rejected early. This issue has been patched in version 0.61.0.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rust-russh · Debian 14 | 0.64.1-1 | DEBIAN-CVE-2026-48108 | Jun 10, 2026 |
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