Is CVE-2026-102825 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-102825?

CVE-2026-102825 has a CVSS v3 severity of LOW (3.7).

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CVE-2026-102825

Description

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.