---
id: CVE-2026-68930
title: Russh is a Rust SSH client & server library
summary: >-
  Russh is a Rust SSH client & server library. Prior to 0.62.5, russh dispatches
  channel-scoped Handler callbacks for recipient channel IDs that were never
  opened or confirmed in russh/src/server/encrypted.rs,
  server_read_authenticated, an…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-666
  - CWE-696
  - CWE-863
vendor: russh
product: russh
affected:
  - russh <= 0.62.4
patched:
  - russh 0.62.5
published: '2026-08-03'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:02:22.660'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-68930'
references:
  - url: >-
      https://github.com/Eugeny/russh/commit/7c5659f8cf6f6f2f9989d12dba0ebf49dc50a171
    label: security-advisories@github.com
  - url: 'https://github.com/Eugeny/russh/releases/tag/v0.62.5'
    label: security-advisories@github.com
  - url: 'https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg'
    label: security-advisories@github.com
  - url: 'https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-m65r-rprj-r5rg'
tags:
  - nvd
  - ghsa
  - rust
epss: 0.00259
epssPercentile: 0.17897
aliases:
  - GHSA-m65r-rprj-r5rg
ecosystem: rust
ingestedAt: '2026-08-03T16:26:24.232Z'
---

## Overview

Russh is a Rust SSH client & server library. Prior to 0.62.5, russh dispatches channel-scoped Handler callbacks for recipient channel IDs that were never opened or confirmed in russh/src/server/encrypted.rs, server_read_authenticated, and the exec_request callback. Version 0.62.5 fixes the issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-68930)

Affected packages:

- `russh <= 0.62.4`

Patched in:

- `russh 0.62.5`

Source: https://github.com/advisories/GHSA-m65r-rprj-r5rg