CVE-2026-8481

critical · 9.9

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.

9.9

CVSS

0.8%

EPSS (exploit prob.)

55th

EPSS percentile

2026-07-17

Published

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-94

Affected products

Vendor	Product	Affected versions
langflow	langflow	>= 1.0.0, < 1.10.1
apple	macos	all versions
linux	linux_kernel	all versions
microsoft	windows	all versions

Check a specific version with /api/v1/cve/match.

References

https://www.ibm.com/support/pages/node/7278923

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-8481