CVE-2026-86084

n8n: Disabled OIDC SSO Endpoints Remain Active and Issue Valid Sessions

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the public OIDC login and callback endpoints completed authentication even when OIDC was not the enabled active authentication method. An Enterprise administrator who had configured and later disabled an identity provider still exposed a working route that could issue valid sessions. The affected logic is packages/cli/src/modules/sso-oidc/oidc.service.ee.ts, including generateLoginUrl and the callback flow that lacked assertOidcLoginEnabled. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed

Vendors

N8n

Products

N8n

CVE-2026-69929

Windows DHCP Server Information Disclosure Vulnerability

Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows Server 2012 and 11 more

CVE-2026-69930

Windows DHCP Server Information Disclosure Vulnerability

Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows Server 2012 and 11 more

CVE-2026-70124

Windows DHCP Server Information Disclosure Vulnerability

Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows Server 2012 and 11 more

CVE-2026-77493

Windows Graphics Component Remote Code Execution Vulnerability

Double free in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-77503

Windows NTFS Elevation of Privilege Vulnerability

Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally.

CVSS 3.1 · 8.4 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-78508

Windows CD-ROM Driver Information Disclosure Vulnerability

Out-of-bounds read in Windows CD-ROM Driver allows an unauthorized attacker to disclose information with a physical attack.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-78523

Windows DNS Server Denial of Service Vulnerability

Use after free in Windows DNS allows an unauthorized attacker to deny service over a network.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows Server 2012 and 11 more

CVE-2026-80083

Windows Hyper-V Remote Code Execution Vulnerability

Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 11 23h2 Windows 11 23h2 Windows 11 24h2 and 8 more

CVE-2026-80093

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1809 Windows 10 21h2 Windows 10 21h2 and 15 more

CVE-2026-70065

Windows DHCP Server Denial of Service Vulnerability

Missing release of memory after effective lifetime in Windows DHCP Server allows an unauthorized attacker to deny service over a network.

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows Server 2012 and 11 more

CVE-2026-83942

Windows Kernel Elevation of Privilege Vulnerability

Missing authorization in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1809 Windows 10 21h2 Windows 10 21h2 and 15 more

CVE-2026-83952

Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 5 more

CVE-2026-83969

Windows Biometric Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 18 more

CVE-2026-83979

Windows Biometric Service Elevation of Privilege Vulnerability

Use after free in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 18 more

CVE-2026-83975

Windows Biometric Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 18 more

CVE-2026-84001

Windows Key Distribution Center Denial of Service Vulnerability

Out-of-bounds read in Windows Key Distribution Center allows an unauthorized attacker to deny service over a network.

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-67641

Microsoft SQL Server Denial of Service Vulnerability

Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a network.

CVSS 3.1 · 6.5 Medium EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2022 (gdr) Microsoft Sql Server 2025 (cu 2) Microsoft Sql Server 2025 For X64-based Systems (gdr) and 2 more

CVE-2026-67642

Microsoft SQL Server Remote Code Execution Vulnerability

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Microsoft Sql Server 2025 (cu 2) Microsoft Sql Server 2025 For X64-based Systems (gdr) Sql Server 2025

CVE-2026-69266

Windows DHCP Server Remote Code Execution Vulnerability

Integer overflow or wraparound in Windows DHCP Server allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows Server 2012 and 11 more