---
id: CVE-2026-106584
title: >-
  In ssh-keygen in OpenSSH before 10.6, certificates could have incorrect
  expiration times because of Daylight Saving mishandling
summary: >-
  In ssh-keygen in OpenSSH before 10.6, certificates could have incorrect
  expiration times because of Daylight Saving mishandling. There can be a
  slightly more severe effect on users in certain Antarctic locations.
severity: low
cvss: 2.5
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N'
cwe:
  - CWE-193
vendor: OpenBSD
product: OpenSSH
affected:
  - OpenSSH < 10.6
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T21:17:19.520'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106584'
references:
  - url: 'https://www.openssh.org/releasenotes.html#10.6'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T21:20:28.988Z'
---

## Overview

In ssh-keygen in OpenSSH before 10.6, certificates could have incorrect expiration times because of Daylight Saving mishandling. There can be a slightly more severe effect on users in certain Antarctic locations.

## Remediation

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