# CVE-2026-82278: DataElement BISHENG remote code execution in workflow run_once

Source: https://junglewise.ai/threats/cve-2026-82278-dataelement-bisheng-remote-code-execution-in-workflow-run-once  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-28. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-82278 · Severity: high · CVSS 8.8 · Published 2026-08-28

BISHENG is an open-source LLM DevOps platform used for enterprise AI applications and GenAI workflow automation. A remote code execution vulnerability in the workflow run_once endpoint allows authenticated users to execute arbitrary Python code on the server, potentially enabling attackers with valid credentials to compromise the entire system, steal credentials, access sensitive data, or pivot into internal networks.

Technologies: [Dataelement BISHENG](https://junglewise.ai/threats/technologies/bisheng). Vendors: [Dataelement](https://junglewise.ai/threats/vendors/dataelement).

## Quick answers

**Is CVE-2026-82278 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-82278 being exploited in the wild.

**How severe is CVE-2026-82278?** High severity, with a CVSS score of 8.8, published 28 August 2026.

**Which products and versions are affected?** Dataelement BISHENG before 2.6.0.

**Is there a fix for CVE-2026-82278?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-82278 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-82278?** Check whether you run Dataelement BISHENG 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.

## Technical details

The vulnerability exists in BISHENG before version 2.6.0, in the POST /api/v1/workflow/run_once endpoint. The flaw allows authenticated users to submit crafted Code node definitions that are executed directly using Python's exec() function without any sandboxing or input validation. An attacker with authentication credentials can leverage this to execute arbitrary Python code with the privileges of the BISHENG process, gaining access to the filesystem, environment variables (including credentials), and internal network resources. The vulnerability requires prior authentication but no other special preconditions; patches are available in version 2.6.0 and later.

## Affected products

- DataElement BISHENG before 2.6.0

## Timeline

- 2026-08-28: disclosed

## References

- [https://github.com/dataelement/bisheng](https://github.com/dataelement/bisheng)
- [https://github.com/dataelement/bisheng/blob/v2.4.0/src/backend/bisheng/api/services/workflow.py](https://github.com/dataelement/bisheng/blob/v2.4.0/src/backend/bisheng/api/services/workflow.py)

## Related threats

- [BISHENG insecure direct object reference in knowledge file API](https://junglewise.ai/threats/cve-2026-111363-bisheng-through-3-0-0-beta4-contains-an-insecure-direct-object)
- [bisheng code injection in validate.py](https://junglewise.ai/threats/cve-2026-51861-bisheng-2-3-0-2-4-0-and-2-4-0-beta1-is-vulnerable-to-code)
- [bisheng directory traversal in task_exec and cache utilities](https://junglewise.ai/threats/cve-2026-51860-bisheng-2-3-0-2-4-0-and-2-4-0-beta1-is-vulnerable-to-directory)
- [bisheng directory traversal in save_download_file](https://junglewise.ai/threats/cve-2026-51859-bisheng-2-3-0-2-4-0-and-2-4-0-beta1-is-vulnerable-to-directory)
- [BISHENG server-side request forgery in workflow callback API](https://junglewise.ai/threats/cve-2026-82285-bisheng-server-side-request-forgery-in-workflow-callback-api)