CVE-2026-73487

Critical

Description

Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows unauthenticated attackers to inject malicious code via prompt injection. Attackers can exploit unblocked pandas functions like pd.read_json() to exfiltrate datasets, perform SSRF against internal services, or achieve code execution through the unauthenticated prediction API.

SeverityCritical

CVSS9.8

Exploit probability—

ProductFlowise

PublishedAug 13, 2026

First seenAug 13, 2026

Weakness typeCWE-94Code injection

How to fix

Update

flowise3.1.3 or later
flowise-components3.1.3 or later

Vendor advisories

github.com/FlowiseAI/Flowise/security/advisories/GHSA-w7x8-q2gp-5cgg

Affected products

Product	Affected versions	Fixed in
flowiseai flowise	v ≤ 3.1.4	—
flowisenpm	v < 3.1.3	3.1.3
flowise-componentsnpm	v < 3.1.3	3.1.3

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