CVE WatchNov 5, 2026

CVE-2026-49405

OpenHuman is an open-source agent harness available as a desktop application and Rust library. Before 0.56.0, the local server exposes the s

CVSS

6.2

Medium

EPSS

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KEV

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Exploit Today

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0-100

Published: Nov 5, 2026 · Last modified: Nov 5, 2026 · CWE-200 · CWE-306

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

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