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Vulnerabilities CVE-2026-8481

CVE-2026-8481

Critical
Open
TLP:CLEAR

Remote Code Execution via Code Validation Endpoint

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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.

Details

CVSS Score
9.9
EPSS Score
0.46%

37.7th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Confidence
90%
Published
Jul 17, 2026
Last Modified
Jul 17, 2026
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