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  4. CVE 2026 49405 openhuman unauthenticated server sent events
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Back to active CVEs
Medium · CVSS 6.2CVE-2026-49405

OpenHuman: Unauthenticated server-sent events endpoint leaks user-facing event dataCVE-2026-49405

Answer in brief

CVE-2026-49405 records a Medium severity (CVSS 6.2) vulnerability in OpenHuman: Unauthenticated server-sent events endpoint leaks user-facing event data. The current sources do not mark it as known exploited. The current feed maps tinyhumansai/openhuman (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 5, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.2
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps tinyhumansai/openhuman (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
tinyhumansai/openhumangeneric<0.56.00.56.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for tinyhumansai/openhuman.
  2. 2Review the reported fix. Update tinyhumansai/openhuman to 0.56.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • OpenHuman: Unauthenticated Socket.IO RPC bypass allows invoking protected OpenHuman core controllers without the Bearer tokenSame tinyhumansai/openhuman package
  • OpenHuman: MCP tool description injection: untrusted server descriptions execute in agent LLM context without sanitizationSame tinyhumansai/openhuman package
  • OpenHuman: Yuanbao non-web channel can bypass human approval to execute `node_exec`Same tinyhumansai/openhuman package
  • OpenHuman: Embedded Google Meet webview can silently capture the macOS desktop without a user gestureSame tinyhumansai/openhuman package
  • OpenHuman: Bearer token leaked via approval gate session_id (SQLite plaintext + debug log + RPC response)Same tinyhumansai/openhuman package
  • Rapid7 Metasploit Framework Web Service unauthenticated bootstrap window allows creation of an administrator account without authenticationAlso CWE-306

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-200, CWE-306
Source
CVE List V5
Source checked
Nov 5, 2026
References
4 linked sources
Open source record