CVE-2026-42863· NVD / CVE Program· CNA GitHub_M

Flowise: Mass Assignment in Chatflow Update Endpoint Allows Cross-Workspace AgentFlow Reassignment

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, a mass assignment vulnerability exists in the chatflow update endpoint of FlowiseAI. The endpoint allows clients to modify server-controlled properties such as deployed, isPublic, workspaceId, createdDate, and updatedDate when updating a chatflow object. Due to missing server-side validation and authorization checks, an authenticated user can manipulate internal attributes of a chatflow and reassign it to another workspace. This allows cross-workspace resource reassignment and unauthorized modification of deployment and visibility settings. This issue has been patched in version 3.1.2.

HighCVSS 7.6 · v4.0—No exploit Fix available

Broken access control (IDOR)

GHSA-5wxp-qjgq-fx6m

Published: Jun 8, 2026
Updated: Jul 23, 2026
EPSS: 0.4% · 28th percentile
CWE: CWE-284

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Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.6 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.4%

CISA SSVC decision

Exploitation: proof of concept
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · GitHub_M: 7.6; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

Vendor	Product	CPE
flowiseai	flowise	cpe:2.3:a:flowiseai:flowise

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

flowiseai flowisebefore 3.1.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

FlowiseAI Flowise
- < 3.1.2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
npm	flowise	before 3.1.2	3.1.2

Same product

flowiseai: all records

Other highest-scoring records for the same primary product.

CVE-2025-59528Flowise has Remote Code Execution vulnerability
66This week
CVE-2025-8943Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers
59Plan
CVE-2025-26319FlowiseAI Flowise v2.2.6 was discovered to contain an arbitrary file upload vulnerability in /api/v1/attachments.
56Plan
CVE-2025-58434Flowise Cloud and Local Deployments have Unauthenticated Password Reset Token Disclosure that Leads to Account Takeover
54Plan
CVE-2024-31621An issue in FlowiseAI Inc Flowise v.1.6.2 and before allows a remote attacker to execute arbitrary code via a crafted script to the api/v1 c
48Plan
CVE-2024-8181Flowise Authentication Bypass
46Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
FlowiseAI Flowise	3.1.2 · description	Vendor (CNA)
npm:flowise	3.1.2	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-4127046 days apartFlowise: SSRF Protection Bypass via Unprotected Built-in HTTP Modules in Custom Function Sandbox
33Monitor
CVE-2026-7047657 days apartFlowise: Broken Access Control in Stripe Subscription Endpoints Allows Cross-Tenant Billing Manipulation
33Monitor
CVE-2026-428610 days apartFlowise: Mass Assignment in Variable Update Endpoint Allows Cross-Workspace Resource Reassignment
30Monitor
CVE-2026-428620 days apartFlowise: Mass Assignment in Tool Update Endpoint Allows Cross-Workspace Resource Reassignment
30Monitor
CVE-2026-464410 days apartFlowise: Mass Assignment in Assistant Update Endpoint Allows Cross-Workspace Resource Reassignment
30Monitor
CVE-2026-4127746 days apartFlowise: Mass Assignment in DocumentStore Create Endpoint Leads to Cross-Workspace Object Takeover (IDOR)
30Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-26-0342 · Jun 9, 2026(Flowise AI Güvenlik Zafiyeti)

All national notices →

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: High
Privileges required: Low
User interaction: None
Scope: X

Weakness class (CWE)

CWE-284 · Improper Access Control

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

Fix✗ → ✓Sep 28, 2026, 10:45 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

No Noroxi analysis for this record yet

We use this product, ask for help

Data sources and verification

CNA: GitHub_M

CVE.org (CNA)Jun 8, 2026, 4:22 PM UTC
CISA ADPJun 8, 2026, 4:22 PM UTC
NVDJul 23, 2026, 3:10 AM UTC
FIRST EPSSOct 2, 2026, 12:00 AM UTC
OSV / GHSAOct 3, 2026, 3:22 AM UTC

Each line is when that source was last processed for this record.

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