CVE-2026-42189

Description

Russh is a Rust SSH client & server library. Prior to version 0.60.1, a pre-authentication denial-of-service vulnerability exists in the server's keyboard-interactive authentication handler. A malicious client can crash any russh-based server that implements keyboard-interactive auth (e.g., for 2FA/TOTP) with a single malformed packet, requiring no credentials. This issue has been patched in version 0.60.1.

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Produits concernés

• Eugeny russh
• Russh project russh
• Warpgate project warpgate

Scores CVSS

Faiblesses (CWE)

• CWE-770
• CWE-789

Références

• https://github.com/Eugeny/russh/commit/6c3c80a9b6d60763d6227d60fa8310e57172a4d1 Patch
• https://github.com/Eugeny/russh/releases/tag/v0.60.1 ProductRelease Notes
• https://github.com/Eugeny/russh/security/advisories/GHSA-f5v4-2wr6-hqmg ExploitMitigationVendor Advisory
• https://github.com/Eugeny/russh/security/advisories/GHSA-f5v4-2wr6-hqmg ExploitMitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories