CVE-2026-56823 AutoGPT: IDOR in Webhook Ping Endpoint Allows Enumeration and Cross-User Ping Triggering

Medium 5.4 Published Updated

Authenticated users can enumerate webhooks and trigger pings for other users due to missing ownership checks on the ping endpoint.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-56823?

CVE-2026-56823 is a medium-severity missing authorization vulnerability in Significant-Gravitas AutoGPT, published on 26 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

AutoGPT is a workflow automation platform for creating, deploying, and managing continuous artificial intelligence agents. Prior to , the `POST /api/integrations/webhooks/{webhook_id}/ping` endpoint fetches the target webhook by primary key alone without verifying that the webhook belongs to the authenticated user. Any authenticated user can supply an arbitrary webhook_id to confirm webhook existence, leak the webhook's OAuth provider type, and in some cases trigger a ping delivery on behalf of another user. This vulnerability is fixed in .

Weakness: CWE-639, CWE-284

Which versions are affected by CVE-2026-56823?

How do I fix CVE-2026-56823?

No fix has been published for CVE-2026-56823 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-56823 being exploited?

There is no known exploitation of CVE-2026-56823 in the wild and no public exploit code.

Sources

Also known as GHSA-rq9m-xvc7-v9h6.

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