CVE-2026-44791

Description

n8n Has an XML Node Prototype Pollution Patch Bypass

Overview

State

—

Assigner (CNA)

—

CVSS severity

critical

CVSS score

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-2026-44791

Linked Threat

CVE-2026-44791 — CVE-2026-44791

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-2026-38485

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 (3)

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

• https://nvd.nist.gov/vuln/detail/CVE-2026-44791 tenable:nvd.nist.gov
• https://thehackernews.com/2026/05/ivanti-fortinet-sap-vmware-n8n-patch.html tenable:thehackernews.com
• https://www.cve.org/CVERecord?id=CVE-2026-44791 tenable:www.cve.org

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

• Windows Kerberos RC4 deprecation: what will break in Active ... - 4sysops
  web:4sysops.com

  Starting in April 2026 , Windows updates will change the default Kerberos ticket issuance behavior to AES-SHA1 for accounts without explicit encryption settings, while RC4 can still be used where explicitly enabled. This change, driven by CVE - 2026 -20833, affects every Windows Server environment where service accounts or devices still rely on RC4. Any service account, NAS device, or legacy ...

  2026-05-26 02:57 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 02:57 UTC
• Windows 11, version 25H2 known issues and notifications
  web:learn.microsoft.com

  Windows 11, version 25H2 is now available for all eligible devices. Devices running Home and Pro editions of Windows 11 that are not managed by IT departments will receive the update to Windows 11, version 25H2 through the machine learning-based intelligent rollout.

  2026-05-26 02:57 UTC
• NVD - Home
  web:nvd.nist.gov

  The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics. For ...

  2026-05-26 02:57 UTC
• February's Patch Tuesday release fixes 59 flaws ... - Computerworld
  web:www.computerworld.com

  Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company's Patch Tuesday release for February ...

  2026-05-26 02:57 UTC
• April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
  web:www.crowdstrike.com

  Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

  2026-05-26 02:57 UTC
• Windows 11 KB5083769 April 2026 update triggers death loops and BSODs
  web:www.notebookcheck.net

  Microsoft's Windows 11 KB5083769 April 2026 update causes critical boot failures, pixelated BSODs, and BitLocker recovery loops on Windows 11 24H2 and 25H2 PCs.

  2026-05-26 02:57 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 02:57 UTC
• Microsoft confirms two major Defender security issues - TechRadar
  web:www.techradar.com

  Microsoft patches two actively exploited zero‑day flaws in Defender, tracked as CVE‑2026‑41091 (privilege escalation) and CVE‑2026‑45498 (denial of service) Updates were shipped ...

  2026-05-26 02:57 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 02:57 UTC

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