Ephemeral devices through logout, deletes, re-auth and collection;
expired routers and nodes, a client's own expiry and logout; a login
waiting across restarts, replayed exchange by exchange.
WithLoginFlags and WithEndpoints shape what a client sends; RotateDisco
logs in again on a new disco key and leaves an auth URL waiting;
SetExpirySooner asks for an earlier key expiry.
OAuth clients, tokens, keys and tag writes by principal, and policy
writes over a baseline, replayed through v1 and v2; a deleted parent
client's key joins real clients.
SaaS answers for unknown users, a short name and a bare "@" at every
site. Each capture also runs under headscale-only user rows, at boot and
runtime; SaaS nodes must not change and overlay nodes get nothing.
SaaS answers for sshTests sources, tests semantics, failure reports,
duplicate destinations, empty and allow-all policies, and refusals.
ACL and SSH compat checks are keyed per check; differences listed.
The lock is taken before any credential check, so client-chosen machine
keys grew the map forever. Ref-count entries; delete at zero.
Fixes ANT-2026-ZC18AF82
One verdict per session, so one waiter: the newest. A displaced one
returns at once (register error, SSH re-delegate), not at session end.
Fixes ANT-2026-NM50ZP4N
Cut lists and hostname at decode, refuse >64 KiB of non-route Hostinfo.
The body limit counted wire bytes, not what the cache, NodeStore and
peers keep.
Fixes ANT-2026-RQS7JAPP
Fixes ANT-2026-5B6KE87K
Fixes ANT-2026-KFCFFM34
handleRegister, the OIDC auth path and SetNodeExpiry refuse it. Expiries
are stored in UTC, which SQLite can read back, and loaded in UTC, as
PostgreSQL returns the server's zone. The v1 API answers 400.
Fixes ANT-2026-QMCAFJ1Q
json.Marshal refuses a year outside [0,9999], so one stored expiry
failed every map with that node. TailNode and key patches send UTC, the
builder drops what fails and the boot scan names the node.
Fixes ANT-2026-QMCAFJ1Q
Only a key that speaks for a tagged node re-authenticates it: a tagged
key, or one of the user it was tagged from. Another user's key or login
adds that user's own device, or only wakes the node under its node key.
Fixes ANT-2026-AWGRB7O1
Such a route names a node, not a subnet: it stays approved and listed
but no viewer gets it. Via inclusions skip the election, so the rule
sits on everything RoutesForPeer returns.
Fixes ANT-2026-MLP8ZR5T
Expired, live, ephemeral and admin-tagged devices logging in again with
spent, revoked, valid and other users' keys, by key and by login;
tag ownership through tags per policy function.
Updates ANT-2026-LYVGXVSW
Updates ANT-2026-AWGRB7O1
Optional Steps, NodeIDs, error data and login state; v1 files unchanged.
Register log and raw map frame parsers; Write refuses auth keys and
login URLs.
A full session channel after the send window evicted live but busy clients.
Requeue and regenerate; evict after no progress for connectionStallTimeout.
Retire blocked reconnect siblings once the newest stream accepts the frame.
Updates #3129.
A peer change hidden from a recipient still produced a frame carrying only
ControlTime, one per sender per recipient. Drop it once the response is final.
Batcher shutdown cuts reconnect grace short to keep shutdown prompt.
Wait for each session's Disconnect to persist LastSeen before the database closes.
The expirable LRU ran its sweeper forever, one goroutine per State. Purge
first so pending waiters get ErrRegistrationExpired instead of hanging.
The OIDC state cache is closed at server shutdown for the same reason.
Kristoffer Dalby
Kristoffer Dalby