# CVE-2026-54143: OpenHuman unauthorized persistent command execution via channel messages

Source: https://junglewise.ai/threats/cve-2026-54143-openhuman-is-an-open-source-agent-harness-available-as-a-desktop  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-05. Updated: 2026-11-05  
License: CC BY 4.0 with a link back

CVE-2026-54143 · Severity: critical · CVSS 9.8 · Published 2026-11-05

OpenHuman is an open-source agent harness that runs as a desktop application and library, enabling autonomous task execution. An attacker who can send messages to a configured external channel can create persistent shell cron jobs without human approval, which execute later with OpenHuman's runtime privileges. This enables unauthorized persistent command execution and compromise of data accessible to the application.

Technologies: [Tinyhumansai OpenHuman](https://junglewise.ai/threats/technologies/openhuman). Vendors: [Tinyhumansai](https://junglewise.ai/threats/vendors/tinyhumansai).

## Quick answers

**Is CVE-2026-54143 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-54143 being exploited in the wild.

**How severe is CVE-2026-54143?** Critical severity, with a CVSS score of 9.8, published 5 November 2026.

**Which products and versions are affected?** Tinyhumansai OpenHuman before 0.57.13.

**Is there a fix for CVE-2026-54143?** Yes: fixed in 0.57.13. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-54143 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-54143?** Check whether you run Tinyhumansai OpenHuman at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 0.57.13

## Technical details

Before version 0.57.13, OpenHuman's scheduler fails to properly validate commands sent through external channels, allowing attackers to create cron jobs without approval. The command validation also permits leading environment variable assignments that can redirect allowed commands to malicious helper executables. An attacker with network access to a configured external channel can exploit this to gain persistent code execution with OpenHuman's privileges.

## Affected products

- tinyhumansai OpenHuman before 0.57.13

## Timeline

- 2026-11-05: disclosed
- 2026-05-27: patched

## References

- [https://github.com/tinyhumansai/openhuman/commit/3a7180da7765af861bf44d79e025fc67dbeae0ca](https://github.com/tinyhumansai/openhuman/commit/3a7180da7765af861bf44d79e025fc67dbeae0ca)
- [https://github.com/tinyhumansai/openhuman/commit/4d9fe2072fdd5787023bafa2c7a63b6f8a7e9b93](https://github.com/tinyhumansai/openhuman/commit/4d9fe2072fdd5787023bafa2c7a63b6f8a7e9b93)

## Related threats

- [OpenHuman credential exposure in process environment on macOS](https://junglewise.ai/threats/cve-2026-54146-openhuman-is-an-open-source-agent-harness-available-as-a-desktop)
- [OpenHuman local server information disclosure via unauthenticated SSE endpoint](https://junglewise.ai/threats/cve-2026-49405-openhuman-is-an-open-source-agent-harness-available-as-a-desktop)
- [OpenHuman Socket.IO authentication bypass](https://junglewise.ai/threats/cve-2026-49393-openhuman-is-an-open-source-agent-harness-available-as-a-desktop)
- [tinyhumansai OpenHuman OS command injection via allowlist bypass](https://junglewise.ai/threats/cve-2026-55743-tinyhumansai-openhuman-os-command-injection-via-allowlist-bypass)