rust-russh: Russh is a Rust SSH client & server library
CVE-2026-73489 is fixed in rust-russh on 1 platform by DEBIAN-CVE-2026-73489 (version 0.64.1-1), released August 13, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Russh is a Rust SSH client & server library. Prior to 0.62.4, an authenticated SSH client can cause a denial of service by sending a pty-req channel request with more than 130 terminal-mode records. The parser in russh/src/server/encrypted.rs stores terminal modes in a fixed 130-entry [(Pty::TTY_OP_END, 0); 130] array but continues increasing the mode count, then constructs an out-of-bounds slice and panics before the application pty_request handler runs. The panic terminates the server session task without causing memory corruption. This issue is fixed in version 0.62.4.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rust-russh · Debian 14 | 0.64.1-1 | DEBIAN-CVE-2026-73489 | Aug 13, 2026 |
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