| Title | NousResearch hermes-agent 0.8.0 Unauthenticated Remote Code Execution Webhook |
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| Description | The hermes-agent webhook adapter supports a special INSECURE_NO_AUTH configuration value that completely disables HMAC signature verification on incoming webhook requests. When a webhook route is configured with this value as its secret, any POST request to /webhooks/{route_name} is accepted without authentication. The payload becomes an agent prompt that can trigger tool execution, effectively enabling Remote Code Execution (RCE) for any network client that can reach the webhook endpoint. |
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| Source | ⚠️ https://github.com/NousResearch/hermes-agent/issues/6440 |
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| User | Yu-Bao (UID 96702) |
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| Submission | 04/09/2026 08:08 (19 days ago) |
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| Moderation | 04/26/2026 17:55 (17 days later) |
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| Status | Accepted |
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| VulDB entry | 359713 [NousResearch hermes-agent 0.8.0 Webhooks Endpoint webhook.py _INSECURE_NO_AUTH missing authentication] |
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| Points | 20 |
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