CVE-2026-73489

Summary: CVE-2026-73489 affects russh (Rust SSH library) prior to 0.62.4. An authenticated SSH client can trigger a denial-of-service by sending a pty-req channel request with more than 130 terminal-mode records. The parser uses a fixed 130-entry array for terminal modes but increments the index ...

CVE-2026-73489 Russh: Post-auth remote panic via pty-req with more than 130 terminal-mode records

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...

GHSA-CQJC-RMPQ-XPRQ Russh: Post-auth remote panic via pty-req with more than 130 terminal-mode records

Summary A post-authentication denial-of-service panic in russh 0.62.2 commit c4be19f1915c8682f4615c3fd50008512b474491, current default branch main as of 2026-07-22. An authenticated client sends a pty-req channel request carrying more than 130 terminal-mode records. The parser uses a fixed...

Russh: Post-auth remote panic via pty-req with more than 130 terminal-mode records

Summary A post-authentication denial-of-service panic in russh 0.62.2 commit c4be19f1915c8682f4615c3fd50008512b474491, current default branch main as of 2026-07-22. An authenticated client sends a pty-req channel request carrying more than 130 terminal-mode records. The parser uses a fixed...