CVE-2026-44847
Unauthenticated Webhook Execution in MaxKB
Publication date: 2026-05-26
Last updated on: 2026-05-26
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| maxkb | maxkb | 2.9.0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-287 | When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. |
| CWE-306 | The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability exists in MaxKB, an open-source AI assistant for enterprise, in versions prior to 2.9.0. The webhook trigger endpoint (/api/trigger/v1/webhook/{trigger_id}) is accessible without authentication because the WebhookAuth class always returns (None, {}), which Django REST Framework treats as successful authentication. This means that any unauthenticated attacker who knows a valid trigger ID can invoke webhook triggers and execute their bound tasks without proper authorization.
How can this vulnerability impact me? :
This vulnerability allows unauthenticated attackers to execute tasks bound to webhook triggers by simply knowing a valid trigger ID. This can lead to unauthorized actions being performed within the MaxKB system, potentially compromising the integrity of operations or causing unintended behavior. The CVSS score indicates a high impact on integrity but no impact on confidentiality or availability.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should upgrade MaxKB to version 2.9.0 or later, where the issue is fixed.
Until the upgrade is applied, restrict access to the webhook trigger endpoint (/api/trigger/v1/webhook/{trigger_id}) to trusted users or networks to prevent unauthenticated invocation.