Improper Authentication Affecting russh package, versions >=0.34.0-beta.1 <0.61.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Improper Authentication vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-RUST-RUSSH-17660677
- published27 Jun 2026
- disclosed10 Jun 2026
- creditmjc
Introduced: 10 Jun 2026
NewCVE-2026-46705 (opens in a new tab)How to fix?
Upgrade russh to version 0.61.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Authentication in the userauth process. An attacker can gain unauthorized access by sending SSH authentication requests that change the principal, causing the server to retain authentication state across different users or services.