CVE-2026-31829Public exploitNetwork attack vector

Internal service access via unrestricted HTTP Node

Published Mar 10, 2026 · Updated Mar 10, 2026

SSRF in the HTTP Node in Flowise before 3.0.13 allows remote attackers to access internal services through a publicly exposed chatflow. The node accepts a user-controlled URL and sends server-side HTTP requests without blocking localhost, private address ranges, or cloud metadata endpoints. An attacker must reach a chatflow containing the node; supported HTTP methods permit reading or changing data only where the targeted internal service accepts those requests.

CVSS severity7.1
High
EPSS probability2.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in the HTTP Node in Flowise before 3.0.13 allows remote attackers to access internal services through a publicly exposed chatflow. The node accepts a user-controlled URL and sends server-side HTTP requests without blocking localhost, private address ranges, or cloud metadata endpoints. An attacker must reach a chatflow containing the node; supported HTTP methods permit reading or changing data only where the targeted internal service accepts those requests.

The record

CVE
CVE-2026-31829
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
FlowiseAI
Product
Flowise
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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=< 3.0.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

FlowiseAI · Flowiseversion=< 3.0.13

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.1GitHub, Inc.CVSS:3.1/AV:N/AC:H/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)
T1190Exploit Public-Facing Application

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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