CVE-2026-82278 BISHENG Authenticated Arbitrary Python Code Execution via Workflow run_once
Authenticated attackers can execute arbitrary Python code via the workflow run_once endpoint, gaining access to filesystem and internal resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82278?
CVE-2026-82278 is a high-severity code injection vulnerability in dataelement bisheng, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
BISHENG before 2.6.0 contains a remote code execution vulnerability in the workflow run_once endpoint that allows authenticated users to execute arbitrary Python code. Attackers can submit crafted Code node definitions to the POST /api/v1/workflow/run_once endpoint, which executes them with exec() without sandboxing, gaining access to filesystem, credentials, and internal network resources.
Weakness: CWE-94
Which versions are affected by CVE-2026-82278?
How do I fix CVE-2026-82278?
No fix has been published for CVE-2026-82278 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-82278 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82278 exists.
Sources
Also known as GHSA-h3mc-9q4p-46jg.