Vulnerability Intelligence Report
Flowise: SSRF Protection Bypass (TOCTOU & Default Insecure)
CVE-2026-41272
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the core security wrappers (secureAxiosRequest and secureFetch) intended to prevent Server-Side Request Forgery (SSRF) contain multiple logic flaws. These flaws allow attackers to bypass the allow/deny lists via DNS Rebinding (Time-of-Check Time-of-Use) or by exploiting the default configuration which fails to enforce any deny list. 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
0.232%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-04-18T14:01:46 |
| Published | 2026-04-23T19:16:08 |
| Last Updated | 2026-04-23T20:18:56 |
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