Download Netbird 0.64.6

What's New
🚨 Security Fix
Security: Fixed account impersonation validation in management API
Fixed a vulnerability in the management server's authentication middleware where the ?account= query parameter could be used to impersonate arbitrary accounts without proper validation when getting a list of accessible peers. It requires the attacker to have prior knowledge of the target accounts' and peer IDs.
The fix adds explicit validation via IsValidChildAccount() before allowing account switching. Account impersonation is now only permitted when the target account is confirmed as a legitimate child account of the
requesting user's parent account.
Affected component: Management server HTTP middleware (auth_middleware.go) and /api/peers/<peer_id>/accessible-peers endpoint
Severity: High — an authenticated user could potentially access or act on behalf of accounts they should not have access to by passing an arbitrary account parameter and fetching the list of accessible peers.
Recommendation: All self-hosted deployments should upgrade to this version.
Client Improvements
- Added missing BSD flags to the debug bundle.
#5254
- Cached the result of wgInterface.ToInterface() using sync.Once for better performance.
#5256
- Fixed nil pointer panic in the ICE agent during sleep/wake cycles.
#5261
- Always log DNS forwarder responses for improved troubleshooting.
#5262
- Fixed netstack detection and added a WireGuard port option.
#5251
- Corrected wrong URL logging for DefaultAdminURL.
#5252
- Added timing measurements to handleSync for better observability.
#5228
- Fixed duplicate firewall rules in USP filter.
#5269
- Added environment variable to skip DNS probing when needed.
#5270
- Fixed race condition and ensured correct message ordering in Relay.
#5265
- Ensured login is checked in foreground mode when required.
#5295
- Fixed multiple panics in device and engine code.
#5287
- Cleaned up stale nftables entries without handle.
#5272
Management Improvements
- Fixed incorrectly setting disconnected status for connected peers.
#5247
- Added gRPC debounce for message types to reduce noise.
#5239
- Added validation of stream start time for connecting peers.
#5267
- Fixed ischild check logic.
#5279
New Contributors
- @eyJhb made their first contribution in #5252
Full Changelog: v0.64.5...v0.64.6