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CVE-2026-42861

📛 CVE Title

(no title)

⬇ Download JSON ⚠ View as Threat

Description

FlowiseAI has Mass Assignment in Variable Update Endpoint that Allows Cross-Workspace Resource Reassignment

Description (MITRE) cveawg.mitre.org

Pulled from cveawg.mitre.org/api/cve/CVE-2026-42861 on 2026-07-03. Shown when MITRE's text differs from the cvelistV5 mirror.

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 variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating a variable resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign variables to arbitrary workspaces. This behavior may break tenant isolation in multi-workspace environments. This issue has been patched in version 3.1.2.

Overview

State
—
Assigner (CNA)
—
CVSS severity
critical
CVSS score
CVSS 9.8 / 10 9.8 9.8 / 10
CVSS vector
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Effective score
9.8 / 10 CRITICAL source: CNA overview
CWE(s)
—
Reserved
—
Published
—
Last updated
—
Source
https://www.tenable.com/cve/CVE-2026-42861
Linked Threat
CVE-2026-42861 — CVE-2026-42861

NVD / KEV / EPSS data refreshed 2026-05-25 00:08 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID
EUVD-2026-35103
Assigner
GitHub_M
Published
Jun 8, 2026, 3:25:47 PM
Updated
Jun 9, 2026, 3:28:06 PM
EUVD base score (CVSS 4.0)
7.6 / 10
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
EUVD-reported EPSS
0.2500
Vendors
FlowiseAI
Products
Flowise (< 3.1.2)
Aliases
GHSA-6fw7-3q8r-m5vj

ENISA description: 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 variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating a variable resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign variables to arbitrary workspaces. This behavior may break tenant isolation in multi-workspace environments. This issue has been patched in version 3.1.2.

EUVD references (2)

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (4)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-42861.json.

Not stored.