CVE-2026-42862

Description

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

Description (MITRE) cveawg.mitre.org

Pulled from cveawg.mitre.org/api/cve/CVE-2026-42862 on 2026-07-30. 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 tool update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating a tool resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign tools to arbitrary workspaces. This breaks tenant isolation in multi-workspace environments. This issue has been patched in version 3.1.2.

Overview

State

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Assigner (CNA)

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CVSS severity

critical

CVSS score

9.1 / 10

CVSS vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Effective score

9.1 / 10 CRITICAL source: CNA overview

CWE(s)

—

Reserved

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Published

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Last updated

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Source

https://www.tenable.com/cve/CVE-2026-42862

Linked Threat

CVE-2026-42862 — CVE-2026-42862

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-2026-35104

EUVD enrichment is queued; refresh the page in a few seconds.

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.

• https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2 tenable:github.com
• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x5v6-pj28-cwwm tenable:github.com
• https://nvd.nist.gov/vuln/detail/CVE-2026-42862 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-42862 tenable:www.cve.org

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

• Microsoft and Adobe Patch Tuesday, February 2026 Security Update Review
  web:blog.qualys.com

  Microsoft's February 2026 Patch Tuesday focuses on closing security gaps that attackers could exploit, reinforcing the importance of timely patching in enterprise environments. Here's a quick…

  2026-05-26 02:56 UTC
• Security Advisory Bulletin 064 | Ubiquiti Community
  web:community.ui.com

  Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...

  2026-05-26 02:56 UTC
• CISA Warns of Exploited Microsoft Defender 0-Day Flaws
  web:cyberpress.org

  The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .

  2026-05-26 02:56 UTC
• Microsoft Patch Tuesday March 2026 - 78 Vulnerabilities Fixed ...
  web:cybersecuritynews.com

  Microsoft released its March 2026 Patch Tuesday security update on March 10, 2026 , addressing 78 vulnerabilities across Windows, Microsoft Office, Azure, SQL Server, and .NET. The update includes one actively exploited zero-day vulnerability and multiple Critical-rated flaws demanding immediate attention from security teams. The most urgent fix this month is CVE - 2026 -21262, the sole zero-day ...

  2026-05-26 02:56 UTC
• Security Update Guide - Microsoft
  web:msrc.microsoft.com

  The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

  2026-05-26 02:56 UTC
• About the security content of iOS 26.2 and iPadOS 26.2
  web:support.apple.com

  This document describes the security content of iOS 26.2 and iPadOS 26.2.

  2026-05-26 02:56 UTC
• Microsoft releases emergency patches for critical ASP.NET flaw
  web:www.bleepingcomputer.com

  Microsoft has released out-of-band (OOB) security updates to patch a critical ASP.NET Core privilege escalation vulnerability.

  2026-05-26 02:56 UTC
• CVE: Common Vulnerabilities and Exposures
  web:www.cve.org

  At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

  2026-05-26 02:56 UTC
• Oracle Critical Patch Update Advisory - April 2026
  web:www.oracle.com

  This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

  2026-05-26 02:56 UTC
• Patch Tuesday May 2026: Security Updates & CVE Analysis
  web:zecurit.com

  Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

  2026-05-26 02:56 UTC

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