docs: explain how to disable SSH forwarding

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Kristoffer Dalby committed 2026-10-29 12:43:14 +01:00
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@@ -161,10 +161,10 @@ nodes; upgrading Headscale alone does not apply them. See Tailscale's
[security bulletins](https://tailscale.com/security-bulletins#ts-2026-014) and
[Tailscale SSH: Findings and fixes](https://tailscale.com/blog/tailscale-ssh-findings-fixes).
Headscale follows Tailscale's SSH policy behavior: forwarding is allowed by default,
with no per-rule forwarding controls. As an interim mitigation for SSH forwarding
vulnerabilities, set `TS_SSH_DISABLE_FORWARDING=1` in the destination `tailscaled`
service environment and restart the service, as described in the security bulletin.
To disable SSH agent and port forwarding on a node, set
`TS_SSH_DISABLE_FORWARDING=1` in the `tailscaled` service environment and restart
the service. This setting applies to all Tailscale SSH sessions on that node and
is also available in older clients.
## 0.29.6 (2026-10-24)