CVE-2026-73489

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

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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.

CVSS 4.3 · Moyenne · EPSS 0,5% · Correctif disponible

Publication

2026-08-13T22:04:44.470Z

Mise à jour

2026-08-17T19:50:33.126Z

Pile logicielle: system

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