---
id: CVE-2026-106586
title: >-
  In sshd in OpenSSH before 10.6, the restrict keyword (in authorized_keys) was
  supposed to be applicable to tunnel forwarding but was not, a different
  vulnerability than CVE-2026-73283.
summary: >-
  In sshd in OpenSSH before 10.6, the restrict keyword (in authorized_keys) was
  supposed to be applicable to tunnel forwarding but was not, a different
  vulnerability than CVE-2026-73283.
severity: low
cvss: 2.5
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-670
vendor: OpenBSD
product: OpenSSH
affected:
  - OpenSSH < 10.6
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T21:17:19.803'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106586'
references:
  - url: 'https://www.openssh.org/releasenotes.html#10.6'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T21:20:28.989Z'
---

## Overview

In sshd in OpenSSH before 10.6, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not, a different vulnerability than CVE-2026-73283.

## Remediation

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