CVE-2026-30822Public exploitNetwork attack vector

Unauthenticated internal-field overwrite via unrestricted object assignment

Published Mar 7, 2026 · Updated Mar 7, 2026

Mass assignment in Flowise before 3.0.13 allows remote attackers to overwrite internal lead fields through unauthenticated API requests. The leads service passes the entire request body to Object.assign(), copying id, createdDate, and chatId into the Lead entity without field filtering. Any deployment using the public leads feature permits stored lead identifiers, timestamps, and chat associations to be manipulated.

CVSS severity7.7
High
EPSS probability12.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Mass assignment in Flowise before 3.0.13 allows remote attackers to overwrite internal lead fields through unauthenticated API requests. The leads service passes the entire request body to Object.assign(), copying id, createdDate, and chatId into the Lead entity without field filtering. Any deployment using the public leads feature permits stored lead identifiers, timestamps, and chat associations to be manipulated.

The record

CVE
CVE-2026-30822
Published
Mar 7, 2026
Updated
Mar 7, 2026
Vendor
FlowiseAI
Product
Flowise
Classifications
CWE-915, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 7, 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 privilegesunauthenticated

What is affected?

FlowiseAI · Flowiseversion=< 3.0.13

Published CVSS scores

7.7GitHub, Inc.CVSS:3.0/AV:N/AC:H/PR:N/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-915Improperly Controlled Modification of Dynamically-Determined Object Attributes
T1565.001Stored Data Manipulation

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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