CVE-2026-8481 Details
Description
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.
A critical remote code execution vulnerability has been identified in IBM Langflow OSS versions 1.0.0 through 1.10.0. The issue resides in the code validation API endpoint, specifically the POST /api/v1/validate/code endpoint. This endpoint allows authenticated users to submit Python code, which is then executed directly using Python's exec() function. The vulnerability arises from the lack of input validation, sandboxing, and privilege restrictions, enabling authenticated users to execute arbitrary system commands with the same privileges as the Langflow server process.
Users are advised to upgrade Langflow OSS to version 1.10.1. Instructions for downloading this version are available on the Langflow project page on PyPI.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 22, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ibm.com/support/pages/node/7278923 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| langflow langflow | >= 1.0.0, < 1.10.1 |
CPE
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| apple macos | All versions |
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| linux linux kernel | All versions |
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| microsoft windows | All versions |
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Modified | CISA-ADP |
| Jul 20, 2026 | Initial Analysis | [email protected] |
| Jul 17, 2026 | New CVE Received | [email protected] |
| Jul 17, 2026 | CVE Modified | CISA-ADP |