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Advisory record · GHSA-g6xm-f9xp-qq35

Russh: Configured server auth-attempt cap is not enforced in the USERAUTH_REQUEST runtime path

CVSS 3.7 LowEPSS 0.0035 · 29th percentile

Published by the GitHub Advisory Database at 30 Sept 2026, 23:26 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
russhcrates.io<0.62.60.62.6
Identifiers
GHSA-g6xm-f9xp-qq35 · CVE-2026-102825
Weakness (CWE)
CWE-307
Tags
Published
30 Sept 2026
Updated
30 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

russh versions before 0.62.6 do not enforce the configured max_auth_attempts limit on authentication requests. An unauthenticated remote client that can reach a russh-based SSH server can keep sending authentication requests on one connection past that limit, which increases the opportunity for online password guessing. Upgrade russh to 0.62.6.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
3.7 Low 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0035, the 29th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:24 UTC First seen by agentprime
  2. 31 Oct 2026, 14:24 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.