Vulnerability Intelligence Report
Flowise: APIChain Prompt Injection SSRF in GET/POST API Chains
CVE-2026-41271
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.
No Active Exploit Signals
CVSS Base Score
7.1
HIGH
Exploitability:1.7
Impact Score:5.5
EPSS Probability:0.23%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-918 ↗CWE-918: Server-Side Request Forgery (SSRF)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| FlowiseAI | Flowise | < 3.1.0 (affected) |
| FlowiseAI | flowise-components | < 3.1.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.233%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-04-18T14:01:46 |
| Published | 2026-04-23T19:17:40 |
| Last Updated | 2026-04-23T19:45:47 |
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