CVE-2026-59999

Medium

Description

In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.

SeverityMedium
CVSS5.9
Exploit probability—
ProductOpenbsd Openssh
PublishedJul 8, 2026
First seenJul 8, 2026
Weakness typeCWE-348CWE-348

How to fix

Update
  • openbsd openssh10.4 or later

Affected products

ProductAffected versionsFixed in
openbsd opensshv < 10.410.4

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.