CVE-2026-13448: IBM Langflow OSS 1.0.0 through 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint (…

PriorityP270critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.67%

50.1th percentile

IBM Langflow OSS 1.0.0 through 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint ( /api/v1/build_public_tmp/{flow_id}/flow ). The vulnerability stems from an incomplete denylist in the validate_public_flow_no_code_execution() function that fails to block several code-execution agent components including OpenDsStarAgent, CodeActAgentSmolagents, and CSVAgent.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
ibm	langflow_oss	1.0.0 – 1.10.1	—
langflow	langflow	>= 1.0.0 < 1.10.2	1.10.2

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