Flowise: Improper Mass Assignment in Account Registration Enables Unauthorized Organization Association (FlowiseAI Flowise)

CVE-2026-41267
HIGH 8.1

At a glance

Source
NVD
EPSS
EPSS 0.33 % · percentile 27 ()
State
PUBLISHED
Published
Updated
Assigner
GitHub_M
NVD status
Analyzed

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, an improper mass assignment (JSON injection) vulnerability in the account registration endpoint of Flowise Cloud allows unauthenticated attackers to inject server-managed fields and nested objects during account creation. This enables client-controlled manipulation of ownership metadata, timestamps, organization association, and role mappings, breaking trust boundaries in a multi-tenant environment. This vulnerability is fixed in 3.1.0.

Weaknesses (CWE)

  • CWE-639 — Authorization Bypass Through User-Controlled Key
  • CWE-915 — Improperly Controlled Modification of Dynamically-Determined Object Attributes

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HGitHub_M
CVSS 3.1HIGH 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · security-advisories@github.com (Secondary)
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

Advisories

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
FlowiseAI · Flowiseaffected < 3.1.0

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD