web hooks failing since core update 2026.5

[newpond]

web hooks not working since upgrading to 2026.5, but work ok when rolling back to 2026.4.4.
possibly linked to home-assistant/core#169296
or home-assistant/core#169271

[jared-94]

Hello,
Webhook triggers in automations don't work anymore, even with local_only: false

Did someone tried this PR from sevorl?

[arnonym]

Are there any logs when this problem occurs?

[jared-94]

No error for me, I get statut code 200 as expected

[RabidAnteater]

I'm also experiencing the problem with Webhooks.

On the ha-sip side, they seem to be sent OK (response 200)

| 15:17:14.725355 [ ] Calling webhook sip_call_webhook_id with data {'caller': 'sip:+123485...@xyx.com', 'called': 'sip:+67123485...@xyx.com', 'parsed_caller': '+...', 'parsed_called': '+...', 'sip_account': 1, 'call_id': '<an_id>', 'internal_id': 'sip:+...', 'headers': {}, 'event': 'ring_timeout'}
| 15:17:14.746560 [ ] Webhook response 200 b''

On the HA side, I get these logs if there is no active listener:

2026-05-29 15:29:25.567 INFO (MainThread) [homeassistant.components.webhook] Received message for unregistered webhook sip_call_webhook_id from 
2026-05-29 15:29:25.568 DEBUG (MainThread) [homeassistant.components.webhook] b'{"caller": "sip:+123485...@xyx.com", "called": "s'

and these with a listener:

2026-05-29 15:32:13.283 DEBUG (MainThread) [homeassistant.components.webhook] Handling webhook POST payload for sip_call_webhook_id
2026-05-29 15:32:13.284 DEBUG (MainThread) [homeassistant.components.webhook] Unable to parse remote ip

If I POST calls directly from Postman on a local machine, the logs look like this:

2026-05-29 15:25:20.564 INFO (MainThread) [homeassistant.components.webhook] Received message for unregistered webhook sip_call_webhook_id from 192.168.1.234
2026-05-29 15:25:20.564 DEBUG (MainThread) [homeassistant.components.webhook] b'{"caller": "sip:+123485...@xyx.com", "called": "s'

2026-05-29 15:24:29.816 DEBUG (MainThread) [homeassistant.components.webhook] Handling webhook POST payload for sip_call_webhook_id

If I set the listener with local_only: false, the webhooks work.

In my case there seems to be some issue with retrieving the IP for the ha-sip webhook calls to allow it to identify them as coming from the local network.

[arnonym]

@RabidAnteater that's very helpful! Thanks for the logs!

[jared-94]

@arnonym any news for a possible fix?

[RabidAnteater]

It looks like it happens to any local webhook that originates from inside a container in HAOS and is sent to http://supervisor/core/api/webhook/...
I've filed a bug for HA Core: Webhooks sent from add-ons/apps in HAOS are not identified as local requests.

[arnonym]

@RabidAnteater thanks, that's very helpful.

[aceindy]

Same here...it seems HA rejected the json send by HASip:
| 13:59:49.701775 [ ] Calling webhook shfghdg_sip_as4324 with data {'caller': '"UA-G3-Intercom" <sip:8003@192.168.1.5>', 'called': '<sip:8002@192.168.1.2;ob>', 'parsed_caller': '8003', 'parsed_called': '8002', 'sip_account': 1, 'call_id': 'a2a7b2c1-c5ba-4690-a2ac-98756ee52891', 'internal_id': '"UA-G3-Intercom" <sip:8003@192.168.1.5>', 'headers': {}, 'event': 'incoming_call'}
is an incorrect json format (due to a mix of ' and " ; it is a Python dictionary string and NOT a valid JSON).
as such, HA doesn't even register the webhook at all, it just throws this error:

Logger: homeassistant.components.webhook
Source: components/webhook/__init__.py:210
Integration: Webhook (documentation, issues)
First occurred: 13:47:22 (3 occurrences)
Last logged: 13:52:16

Error processing webhook shfghdg_sip_as4324
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/webhook/__init__.py", line 210, in async_handle_webhook
    response = await webhook.handler(hass, webhook_id, request)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/webhook/trigger.py", line 66, in _handle_webhook
    base_result["json"] = json_loads(text) if text else {}
                          ~~~~~~~~~~^^^^^^
  File "/usr/src/homeassistant/homeassistant/util/json.py", line 40, in json_loads
    return orjson.loads(obj)  # type:ignore[no-any-return]
           ~~~~~~~~~~~~^^^^^

And for me, setting local_only: no did not help...
Possibly because of a hardening on webhook on HA side ?

But...since 5.6 I am allowed to use MQTT on supervised, so I switched (and that works, @arnonym thanks for that change ☺️ )

[arnonym]

@aceindy What you see in the logs is the python dictionary format. It later will be serialized by the requests library to json. So the format you see there is not the fault of the error on the webhook side. Are there any details what's going wrong with the de-serialization?

[aceindy]

@arnonym
HA didn't even register the webhook, this 'crash' was the only clue it revealed.
Just combed through the logs once more, but found nothing else related, sorry..

[glvanlier]

Same issue here. Following.

[aceindy]

@glvanlier Same what? Local_only issue or webhook crash ?