CVE-2026-42863

Description

FlowiseAI has Mass Assignment in Chatflow Update Endpoint that Allows Cross-Workspace AgentFlow Reassignment

Overview

State

—

Assigner (CNA)

—

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

—

Published

—

Last updated

—

Source

https://www.tenable.com/cve/CVE-2026-42863

Linked Threat

CVE-2026-42863 — CVE-2026-42863

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-2026-35106

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-5wxp-qjgq-fx6m tenable:github.com
• https://nvd.nist.gov/vuln/detail/CVE-2026-42863 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-42863 tenable:www.cve.org

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

• 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
• Wireshark 4.6.6 Released With Fix for Dissector Crash via Malformed ...
  web:cybersecuritynews.com

  The Wireshark Foundation has released Wireshark 4.6.6, addressing a critical security vulnerability in the ROHC (Robust Header Compression) protocol dissector that could allow an attacker to crash the application by injecting a specially crafted, malformed packet.

  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
• Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...
  web:support.servicenow.com

  Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

  2026-05-26 02:56 UTC
• Oracle Critical Patch Update, April 2026 Security Update Review
  web:threatprotect.qualys.com

  This Critical Patch Update for Oracle Fusion Middleware received 59 security patches. Out of these, 46 vulnerabilities can be exploited over a network without user credentials. CVE -2022-45047, CVE -2025-68615, CVE - 2026 -34285, CVE - 2026 -34286, CVE - 2026 -34287, and CVE -2021-45046 have critical severity and CVSS scores of 9.8, 9.1, and 9.0, respectively.

  2026-05-26 02:56 UTC
• Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws
  web:www.bleepingcomputer.com

  Today is Microsoft's February 2026 Patch Tuesday with security updates for 58 flaws, including 6 actively exploited and three publicly disclosed zero-day vulnerabilities.

  2026-05-26 02:56 UTC
• Meta Discloses 2 WhatsApp Vulnerabilities In New Security Advisory - Forbes
  web:www.forbes.com

  A new Meta security advisory has disclosed two WhatsApp vulnerabilities, CVE - 2026 -23863 and CVE - 2026 -23866. Here's what you need to know.

  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
• Windows 11 April 2026 Update tested: What's new, improved and fixed
  web:www.windowslatest.com

  Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

  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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