CVE-2026-8481
Remote Code Execution via Code Validation Endpoint
CVSS Score
9.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 |
| Vendor | ibm |
| Product | langflow oss |
| Published | Jul 17, 2026 |
| Last Updated | Jul 17, 2026 |
Stay Ahead of the Next One
Get instant alerts for ibm langflow oss
Be the first to know when new critical vulnerabilities affecting ibm langflow oss are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
IBM / Langflow OSS
1.0.0 ≤ 1.10.0
Credits
Kim SooHyun (im-soohyun)