CVE-2026-41274 CRITICAL

CVE-2026-41274: Flowise: Cypher Injection in GraphCypherQAChain

Vendor Flowiseai
Product Flowise
Weakness CWE-943
Published April 23, 2026
Last update April 24, 2026

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the GraphCypherQAChain node forwards user-provided input directly into the Cypher query execution pipeline without proper sanitization. An attacker can inject arbitrary Cypher commands that are executed on the underlying Neo4j database, enabling data exfiltration, modification, or deletion. This vulnerability is fixed in 3.1.0.

Key dates

02Disclosure timeline

April 23, 2026 CVE published
April 24, 2026 Record updated