CVE-2026-42236

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the MCP OAuth client registration endpoint accepted unauthenticated requests and stored client data without adequate resource controls. An unauthenticated remote attacker could exhaust server memor...

CVE-2026-42230

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the /mcp-oauth/register endpoint accepted OAuth client registrations without authentication, allowing arbitrary redirecturi values to be registered. When a user denies the MCP OAuth consent dialog,...

CVE-2026-42236 n8n: Unauthenticated Denial of Service via MCP Client Registration

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the MCP OAuth client registration endpoint accepted unauthenticated requests and stored client data without adequate resource controls. An unauthenticated remote attacker could exhaust server memor...

CVE-2026-42236 n8n: Unauthenticated Denial of Service via MCP Client Registration

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the MCP OAuth client registration endpoint accepted unauthenticated requests and stored client data without adequate resource controls. An unauthenticated remote attacker could exhaust server memor...

CVE-2026-42236

Summary: CVE-2026-42236 affects n8n, an open source workflow automation platform. The issue is in the MCP OAuth client registration endpoint, which accepted unauthenticated requests and stored client data without adequate resource controls. An unauthenticated remote attacker could perform a denia...

CVE-2026-42236 n8n: Unauthenticated Denial of Service via MCP Client Registration

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the MCP OAuth client registration endpoint accepted unauthenticated requests and stored client data without adequate resource controls. An unauthenticated remote attacker could exhaust server memor...

EUVD-2026-27111

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the MCP OAuth client registration endpoint accepted unauthenticated requests and stored client data without adequate resource controls. An unauthenticated remote attacker could exhaust server memor...

CVE-2026-42236

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the MCP OAuth client registration endpoint accepted unauthenticated requests and stored client data without adequate resource controls. An unauthenticated remote attacker could exhaust server memor...

EUVD-2026-27100

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the /mcp-oauth/register endpoint accepted OAuth client registrations without authentication, allowing arbitrary redirecturi values to be registered. When a user denies the MCP OAuth consent dialog,...

CVE-2026-42230

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the /mcp-oauth/register endpoint accepted OAuth client registrations without authentication, allowing arbitrary redirecturi values to be registered. When a user denies the MCP OAuth consent dialog,...

CVE-2026-42230 n8n: Open Redirect in MCP OAuth Consent Flow

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the /mcp-oauth/register endpoint accepted OAuth client registrations without authentication, allowing arbitrary redirecturi values to be registered. When a user denies the MCP OAuth consent dialog,...

CVE-2026-42230 n8n: Open Redirect in MCP OAuth Consent Flow

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the /mcp-oauth/register endpoint accepted OAuth client registrations without authentication, allowing arbitrary redirecturi values to be registered. When a user denies the MCP OAuth consent dialog,...

CVE-2026-42230

Affected software: n8n open source workflow automation platform. Vulnerability: Open redirect via the MCP OAuth flow. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the /mcp-oauth/register endpoint allowed unauthenticated OAuth client registrations, enabling arbitrary redirect_uri values. If a u...

PT-2026-36930

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8 Description A remote denial of service can be triggered via the udm nudm uecm handle amf registration update function within the /src/udm/nudm-handler.c file of the amf-3gpp-access endpoint. Recommendations As a...

PT-2026-36902

Name of the Vulnerable Software and Affected Versions n8n versions prior to 1.123.32 n8n versions prior to 2.17.4 n8n versions prior to 2.18.1 Description The '/mcp-oauth/register' endpoint allows OAuth client registrations without authentication, which permits the registration of arbitrary...

HashiCorp Boundary 安全漏洞

HashiCorp Boundary is an open-source solution developed by HashiCorp in the United States. It enables secure, identity-based access for users across different environments to hosts and services. There are security vulnerabilities in versions of HashiCorp Boundary prior to 0.21.3, 0.20.3, and...

VulnCheck KEV: CVE-2025-3278

The UrbanGo Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 1.0.4. This is due to the plugin allowing users who are registering new accounts to set their own role or by supplying 'userregisterrole' field. This makes it possible for...

n8n 安全漏洞

n8n is an open-source, scalable workflow automation tool developed by n8n. Versions of n8n prior to 1.123.32, 2.17.4, and 2.18.1 contained security vulnerabilities. These vulnerabilities stemmed from the MCP OAuth client registration endpoint accepting unauthenticated requests without proper...

Open5GS 安全漏洞

Open5GS is an open-source implementation of 5G Core and EPC in C language, which serves as the core network for Lte/Nr networks. Versions of Open5GS 2.7.7 and earlier contain security vulnerabilities. These vulnerabilities stem from issues with the amf-3gpp-access endpoint in the file...

VulnCheck KEV: CVE-2024-13421

The Real Estate 7 WordPress theme for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.5.1. This is due to the plugin not properly restricting the roles allowed to be selected during registration. This makes it possible for unauthenticated attackers to...