CVE-2026-41274

critical · 9.3

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.

9.3

CVSS

0.5%

EPSS (exploit prob.)

42nd

EPSS percentile

2026-04-23

Published

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-943

Affected products

Vendor	Product	Affected versions
flowiseai	flowise	< 3.1.0

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

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-28g4-38q8-3cwc
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-28g4-38q8-3cwc

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-41274