IBMCVE-2026-8481
IBM Langflow OSS: remote code execution
Critical9.9CVE-2026-8481 · Published Jul 17, 2026 · updated Jul 23, 2026
IBM Langflow OSS 1.0.0 through 1.10.0 contain a critical remote code execution vulnerability in the code validation API endpoint. The POST /api/v1/validate/code endpoint accepts user-supplied Python code and executes it directly using Python's built-in exec() function without sandboxing, input validation, or privilege restrictions, enabling any authenticated user to execute arbitrary system commands with the full privileges of the Langflow server process.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Langflow OSS Product | >= 1.0.0, <= 1.10.0 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-94
More IBM advisories
All IBM| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 17 | IBM Langflow OSS: insecure direct object reference | High8.1 | No fix yet |
| Jul 17 | IBM Langflow OSS: hard-coded credentials | Critical9.8 | No fix yet |
| Jul 17 | IBM Langflow OSS: remote code execution | Critical9.8 | No fix yet |
| Jul 17 | IBM Langflow OSS: privilege escalation | Critical9.9 | No fix yet |
| Jul 17 | IBM Langflow OSS: improper input validation | Critical9.9 | No fix yet |
| Jul 17 | IBM Security Verify Access: information disclosure | Medium5.3 | No fix yet |