CVEvulnerability

CVE-2026-42189

7.5 HIGH Published 2026-05-08 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-05-08
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-770, CWE-789

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.

Affected configurations

• russh project russh (< 0.60.1) • warpgate project warpgate (< 0.23.1)

Related

Weakness · CWE (2)

  • CWE-770 Allocation of Resources Without Limits or Throttling weakness
  • CWE-789 Memory Allocation with Excessive Size Value weakness

References