This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-59999 →
DEBIAN-CVE-2026-59999
In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.
Original description
The description as published by the source.
In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:10.4p1-1"}]}]
References
- advisory security-tracker.debian.org