CVE-2026-41270Public exploitNetwork attack vector

Authenticated SSRF via unwrapped Node.js network modules

Published Apr 23, 2026 · Updated Apr 23, 2026

SSRF in Flowise before 3.1.0 allows remote authenticated users to access internal resources through the Custom Function endpoint. packages/components/src/utils.ts gives NodeVM code direct access to http, https, and net while deny-list checks wrap only axios and node-fetch. A valid API key or authenticated session is required; exposed metadata services can disclose temporary cloud credentials.

CVSS severity7.1
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Flowise before 3.1.0 allows remote authenticated users to access internal resources through the Custom Function endpoint. packages/components/src/utils.ts gives NodeVM code direct access to http, https, and net while deny-list checks wrap only axios and node-fetch. A valid API key or authenticated session is required; exposed metadata services can disclose temporary cloud credentials.

The record

CVE
CVE-2026-41270
Published
Apr 23, 2026
Updated
Apr 23, 2026
Vendor
FlowiseAI
Product
Flowise
Classifications
CWE-918, CWE-284, T1552.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

FlowiseAI · Flowiseversion=< 3.1.0
FlowiseAI · flowise-componentsversion=< 3.1.0

Published CVSS scores

7.1GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
8.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CWE-284Improper Access Control
T1552.005Unsecured Credentials: Cloud Instance Metadata API

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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