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THREAT OPSThreat News › [NVD] CVE-2026-73489 (MEDIUM 4.3) — 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-

[NVD] CVE-2026-73489 (MEDIUM 4.3) — 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-

lownvdPublished 2026-08-13

CVE-2026-73489 CVSS: 4.3 MEDIUM Published: 2026-08-13T22:17:26.893

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 continue

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-73489