CVE-2026-102825
3.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
Russh is a Rust SSH client and server library. Prior to 0.62.6, the USERAUTH_REQUEST path reached from server::run_stream in russh/src/server/encrypted.rs increments self.common.auth_attempts but never compares it with server::Config.max_auth_attempts. An unauthenticated remote client can continue submitting authentication requests on one connection beyond the configured cap, bypassing the deployment's attempt-limiting policy and increasing online guessing opportunity and backend authentication workload. This issue is fixed in version 0.62.6.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Eugeny | russh | < 0.62.6 | affected |
Weaknesses
- CWE-307: CWE-307: Improper Restriction of Excessive Authentication Attempts
References
- https://github.com/Eugeny/russh/security/advisories/GHSA-g6xm-f9xp-qq35
- https://github.com/Eugeny/russh/commit/f8fd0b11a393364dc7f01a182482d86adafdd653
- https://github.com/Eugeny/russh/releases/tag/v0.62.6
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