CVE-2026-41271

HIGH

8.3

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, a Server-Side Request Forgery (SSRF) vulnerability exists in FlowiseAI's POST/GET API Chain components that allows unauthenticated attackers to force the server to make arbitrary HTTP requests to internal and external systems. By injecting malicious prompt templates, attackers can bypass the intended API documentation constraints and redirect requests to sensitive internal services, potentially leading to internal network reconnaissance and data exfiltration. This vulnerability is fixed in 3.1.0.

CVE Details

CVSS v3.1 Score8.3

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published4/23/2026

Last Modified4/24/2026

Sourcenvd

Honeypot Sightings0

Affected Products

flowiseai:flowise

Weaknesses (CWE)

CWE-918

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6r77-hqx7-7vw8(security-advisories@github.com)

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6r77-hqx7-7vw8(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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