OpenHuman is an open-source agent harness available as a desktop application and Rust library. Before 0.56.0, the local server exposes the server-sent events endpoint at /events without bearer authentication, permits cross-origin browser access, and uses only a caller-supplied client_id to select WebChannelEvent objects from the process-wide event bus. An unauthenticated local client, or an attacker-hosted web page opened by the victim, can subscribe to another client's stream by supplying a known or guessed identifier; the fixed system identifier makes the proactive-message stream predictable. The exposed events can include complete assistant responses, streamed message content, tool names, tool arguments, and raw tool outputs intended for the local user interface. This issue is fixed in version 0.56.0.
Metrics
Affected Vendors & Products
References
History
Fri, 06 Nov 2026 19:30:00 +0000
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ssvc
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Thu, 05 Nov 2026 18:00:00 +0000
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Tinyhumansai
Tinyhumansai openhuman |
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Tinyhumansai
Tinyhumansai openhuman |
Thu, 05 Nov 2026 16:45:00 +0000
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| Description | OpenHuman is an open-source agent harness available as a desktop application and Rust library. Before 0.56.0, the local server exposes the server-sent events endpoint at /events without bearer authentication, permits cross-origin browser access, and uses only a caller-supplied client_id to select WebChannelEvent objects from the process-wide event bus. An unauthenticated local client, or an attacker-hosted web page opened by the victim, can subscribe to another client's stream by supplying a known or guessed identifier; the fixed system identifier makes the proactive-message stream predictable. The exposed events can include complete assistant responses, streamed message content, tool names, tool arguments, and raw tool outputs intended for the local user interface. This issue is fixed in version 0.56.0. | |
| Title | OpenHuman: Unauthenticated server-sent events endpoint leaks user-facing event data | |
| Weaknesses | CWE-200 CWE-306 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-11-05T16:33:23.839Z
Updated: 2026-11-05T18:23:34.573Z
Reserved: 2026-05-29T19:08:01.257Z
Link: CVE-2026-49405
Updated: 2026-11-05T18:23:18.367Z
Status : Deferred
Published: 2026-11-05T17:18:18.457
Modified: 2026-11-06T21:32:18.733
Link: CVE-2026-49405
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