CVE-2026-59999

Description

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

References

• https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2
• https://www.openssh.org/releasenotes.html#10.4p1
• https://www.openwall.com/lists/oss-security/2026/07/06/5