CVE-2026-8481
Remote Code Execution via Code Validation Endpoint
CRITICAL 9.9EPSS 0.9%
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
- IBM · Langflow OSS
- CVSS v3.1 IBM
- 9.9 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS
- 0.88% chance of exploitation in the next 30 days, 58th percentile
- Published
- 2026-07-17
- Updated
- 2026-07-23
Proof-of-concept exploits (2)
- 0xdak/CVE-2026-9198_exploit1★ · 2026-07-21
- chessalekin/cve-2026-9198_exploit0★ · 2026-08-24