Next.js: Next.js: Server-Side Request Forgery via crafted WebSocket upgrade requests

A flaw was found in Next.js. Self-hosted applications utilizing the built-in Node.js server are vulnerable to Server-Side Request Forgery SSRF through specially crafted WebSocket upgrade requests. A remote attacker can exploit this by causing the server to proxy requests to arbitrary internal or...

CVE-2026-58172 Ocelot - IP Allow/Block List Bypass for WebSocket Upgrade Requests

Ocelot through 24.1.0, fixed in commit f156fd4, contains a security control bypass vulnerability that allows denied clients to circumvent IP-based access restrictions by sending WebSocket upgrade requests. The WebSocket upgrade pipeline branch configured via MapWhen in OcelotPipelineExtensions.cs...

CVE-2026-58172 Ocelot - IP Allow/Block List Bypass for WebSocket Upgrade Requests

Ocelot through 24.1.0, fixed in commit f156fd4, contains a security control bypass vulnerability that allows denied clients to circumvent IP-based access restrictions by sending WebSocket upgrade requests. The WebSocket upgrade pipeline branch configured via MapWhen in OcelotPipelineExtensions.cs...

CVE-2026-58172

CVE-2026-58172 affects Ocelot up to version 24.1.0. A security control bypass allows denied clients to bypass IP-based access restrictions by sending WebSocket upgrade requests. The WebSocket upgrade pipeline branch configured via MapWhen omits SecurityMiddleware, causing requests from blocked IP...

CVE-2026-53869

CVE-2026-53869 : Hermes Agent prior to 0.16.0 has a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. The FastAPI HTTP middleware is not executed for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events, ena...

USN-8417-1 tomcat9, tomcat10 vulnerabilities

It was discovered that Tomcat did not properly limit the size of WebDAV LOCK and PROPFIND request bodies. A remote attacker could use this issue to cause Tomcat to consume excessive memory, resulting in a denial of service. CVE-2026-41284 It was discovered that Tomcat incorrectly validated HTTP/2...

CVE-2026-44578 Next.js: Server-side request forgery in applications using WebSocket upgrades

Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requests. An attacker can cause the serve...

CVE-2026-44578 Next.js: Server-side request forgery in applications using WebSocket upgrades

Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requests. An attacker can cause the serve...

CVE-2026-44578

CVE-2026-44578 affects Next.js self-hosted deployments using the built-in Node.js server. The issue enables server-side request forgery via crafted WebSocket upgrade requests, allowing an attacker to proxy requests to internal or external destinations and potentially expose internal services or c...

CVE-2026-44578 Next.js: Server-side request forgery in applications using WebSocket upgrades

Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requests. An attacker can cause the serve...

Server-side Request Forgery (SSRF)

Overview next is a react framework. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via crafted WebSocket upgrade requests. An attacker can access internal or external resources by sending specially crafted requests with absolute-url that cause the server to...

NPM: Next.js vulnerable to server-side request forgery in applications using WebSocket upgrades

NPM: Next.js vulnerable to server-side request forgery in applications using WebSocket upgrades vulnerability discovered by ? in WordPress Npm next versions = 13.4.13, 15.5.16...

Next.js vulnerable to server-side request forgery in applications using WebSocket upgrades

Impact Self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requests. An attacker can cause the server to proxy requests to arbitrary internal or external destinations, which may expose internal services or...

PT-2026-38638

Name of the Vulnerable Software and Affected Versions Next.js versions 13.4.13 through 15.5.15 Next.js versions 16.0.0 through 16.2.4 Description Self-hosted applications using the built-in Node.js server are subject to server-side request forgery SSRF, a condition where an attacker forces a serv...

CVE-2026-41399

OpenClaw before 2026.3.28 accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. Unauthenticated network attackers can exhaust socket and worker capacity to disrupt WebSocket availability for legitimate clients...

CVE-2026-41399 OpenClaw < 2026.3.28 - Denial of Service via Unbounded Pre-auth WebSocket Upgrades

OpenClaw before 2026.3.28 accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. Unauthenticated network attackers can exhaust socket and worker capacity to disrupt WebSocket availability for legitimate clients...

CVE-2026-41399

OpenClaw before 2026.3.28 accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. Unauthenticated network attackers can exhaust socket and worker capacity to disrupt WebSocket availability for legitimate clients...

CVE-2026-41399

OpenClaw before 2026.3.28 allows unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget Allocation, enabling unauthenticated attackers to exhaust socket and worker capacity and disrupt WebSocket availability for legitimate clients. The issue is tracked as CVE-20...

CVE-2026-41399 OpenClaw < 2026.3.28 - Denial of Service via Unbounded Pre-auth WebSocket Upgrades

OpenClaw before 2026.3.28 accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. Unauthenticated network attackers can exhaust socket and worker capacity to disrupt WebSocket availability for legitimate clients...

PT-2026-35783

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.3.28 Description OpenClaw accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. This allows unauthenticated network attackers to exhaust socket and worker...