CVE-2026-7803 PUBLISHED

Flow Validation Bypass via Empty Component Type Field

Assigner: ibm
Reserved: 04.05.2026 Published: 30.06.2026 Updated: 01.07.2026

IBM Langflow OSS 1.0.0 through 1.10.0 could allow arbitrary code execution due to improper validation of flow nodes with missing or empty component type fields.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	IBM
Product	Langflow OSS
Versions	affected from 1.0.0 to 1.10.0 (incl.)

Solutions

IBM strongly recommends addressing the vulnerability now by upgrading Langflow OSS to version 1.10.1 https://pypi.org/project/langflow/

Credits

Jacques Artelle ottawapm.jack@gmail.com finder

References

https://www.ibm.com/support/pages/node/7278445

Problem Types

CWE-20 Improper Input Validation CWE