CVE-2026-42189

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:russh_project:russh:*:*:*:*:*:rust:*:*
cpe:2.3:a:warpgate_project:warpgate:*:*:*:*:*:*:*:*

History

14 May 2026, 18:07

Type Values Removed Values Added
First Time Russh Project
Warpgate Project warpgate
Warpgate Project
Russh Project russh
CPE cpe:2.3:a:warpgate_project:warpgate:*:*:*:*:*:*:*:*
cpe:2.3:a:russh_project:russh:*:*:*:*:*:rust:*:*
References () https://github.com/Eugeny/russh/commit/6c3c80a9b6d60763d6227d60fa8310e57172a4d1 - () https://github.com/Eugeny/russh/commit/6c3c80a9b6d60763d6227d60fa8310e57172a4d1 - Patch
References () https://github.com/Eugeny/russh/releases/tag/v0.60.1 - () https://github.com/Eugeny/russh/releases/tag/v0.60.1 - Product, Release Notes
References () https://github.com/Eugeny/russh/security/advisories/GHSA-f5v4-2wr6-hqmg - () https://github.com/Eugeny/russh/security/advisories/GHSA-f5v4-2wr6-hqmg - Exploit, Mitigation, Vendor Advisory

11 May 2026, 16:17

Type Values Removed Values Added
References () https://github.com/Eugeny/russh/security/advisories/GHSA-f5v4-2wr6-hqmg - () https://github.com/Eugeny/russh/security/advisories/GHSA-f5v4-2wr6-hqmg -

08 May 2026, 20:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-08 20:16

Updated : 2026-05-14 18:07


NVD link : CVE-2026-42189

Mitre link : CVE-2026-42189

CVE.ORG link : CVE-2026-42189


JSON object : View

Products Affected

russh_project

  • russh

warpgate_project

  • warpgate
CWE
CWE-770

Allocation of Resources Without Limits or Throttling

CWE-789

Memory Allocation with Excessive Size Value