CVE-2026-44882

Description

Portainer's Kubernetes middleware continues after token validation failure, bypassing endpoint authorization

Overview

State

—

Assigner (CNA)

—

CVSS severity

high

CVSS score

8.1 / 10

CVSS vector

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

Effective score

8.1 / 10 HIGH source: CNA overview

CWE(s)

—

Reserved

—

Published

—

Last updated

—

Source

https://www.tenable.com/cve/CVE-2026-44882

Linked Threat

CVE-2026-44882 — CVE-2026-44882

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-2026-33060

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/portainer/portainer/security/advisories/GHSA-mgq6-4x29-88r3 tenable:github.com
• https://www.first.org/epss/ tenable:www.first.org
• https://nvd.nist.gov/vuln/detail/CVE-2026-44882 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-44882 tenable:www.cve.org

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

• Security Updates - Red Hat Customer Portal
  web:access.redhat.com

  Learn about our open source products, services, and company. You are here

  2026-05-26 02:55 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 02:55 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 02:55 UTC
• Nvd - Cve-2026-44448
  web:nvd.nist.gov

  An official website of the United States government Here's how you know

  2026-05-26 02:55 UTC
• Security Update Guide - Microsoft
  web:portal.msrc.microsoft.com

  The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

  2026-05-26 02:55 UTC
• CVE-2026-44882: Portainer Kubernetes Middleware Authorization Bypass ...
  web:vulert.com

  CVE-2026-44882 is a high-severity vulnerability in Portainer's Kubernetes middleware, allowing unauthorized access to resources. Update to version 2.33.8 or later to fix this issue.

  2026-05-26 02:55 UTC
• Critical Patch Updates, Critical Security Patch Updates ... - Oracle
  web:www.oracle.com

  Critical Security Patch Updates Critical Security Patch Updates provide security patches for supported Oracle on-premises products. A Critical Security Patch Update provides targeted, high-priority security fixes in a smaller, more focused format, making them easier to apply with minimal disruption.

  2026-05-26 02:55 UTC
• Oracle Patches 450 Vulnerabilities With April 2026 CPU
  web:www.securityweek.com

  Oracle on Tuesday announced the release of 481 new security patches as part of its April 2026 Critical Patch Update (CPU). Across the 28 product families that received security updates, more than 300 patches address vulnerabilities that are remotely exploitable without authentication.

  2026-05-26 02:55 UTC
• Windows 11 KB5083769 update triggers BitLocker recovery | Windows Central
  web:www.windowscentral.com

  A faulty BitLocker configuration is forcing some PCs into BitLocker recovery mode after the April 2026 update, but there's a workaround to resolve this issue.

  2026-05-26 02:55 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 02:55 UTC

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