CVE-2026-106584 Other in OpenSSH
Attackers may bypass certificate expiration checks due to Daylight Saving Time mishandling in ssh-keygen, potentially allowing unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-106584?
CVE-2026-106584 is a low-severity vulnerability in OpenSSH, published on 6 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-193
Which versions are affected by CVE-2026-106584?
It affects 1 product.
Products include OpenSSH.
How do I fix CVE-2026-106584?
Upgrade to a fixed version.
Is CVE-2026-106584 being exploited?
There is no known exploitation of CVE-2026-106584 in the wild and no public exploit code.
Other vulnerabilities in OpenSSH
Sources
Also known as AZL-106703, BELL-CVE-2026-106584, DEBIAN-CVE-2026-106584, ECHO-dbcf-3d8c-a4fa, GHSA-9hq3-hc6p-gc8q, UBUNTU-CVE-2026-106584.