BISHENG Authenticated Arbitrary Python Code Execution via Workflow run_once
Priority HIGH 73CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01029 63rd percentileScored 2026-11-07
Fix Fixed bisheng (dataelement): 2.6.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| dataelement | bisheng | before 2.6.0 | 2.6.0 | Patch available | CNA |
- bisheng Vendordataelement Affected before 2.6.0 Fixed in 2.6.0 Patch available CNA
Remediation
- Fix · CNA bisheng (dataelement) Fixed in 2.6.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-82278
- 2026-10-03 Alias added: GHSA-h3mc-9q4p-46jg
References
More dataelement vulnerabilities
- TI-2026-56750 BISHENG Unauthenticated Server-Side Request Forgery via Workflow Report Callback CVSS 4.0HIGH 8.8
- TI-2026-75093 Insecure direct object reference in BISHENG exposes parsed documents CVSS 4.0HIGH 7.1
Sources
- CVE-2026-82278 · CVE Program
- CVE-2026-82278 · NVD
- FIRST EPSS
- GHSA-h3mc-9q4p-46jg · GitHub Advisory Database · CC BY 4.0
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