Next.js: Server-Side Request Forgery in Server Actions on custom servers

Impact When a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host Server-Side Request Forgery. This requires the attacker's request to control Host-associated headers. In some configurations, it's also possible to obtai...

GHSA-89XV-2M56-2M9X Next.js: Server-Side Request Forgery in Server Actions on custom servers

Impact When a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host Server-Side Request Forgery. This requires the attacker's request to control Host-associated headers. In some configurations, it's also possible to obtai...

Allocation of Resources Without Limits or Throttling

Overview next is a react framework. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the handleAction Server Actions path in the App Router Edge runtime. An attacker can exhaust server memory by sending an oversized Server Action request...

Next.js: Unbounded Server Action payload in Edge runtime

Impact Requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive memory consumption if that Server Actions uses the Edge runtime Workarounds If you cannot upgrade, ensure your hosting provider limits the request's body size. 5 MiB should be...

GHSA-955P-X3MX-JCVP Next.js: Unauthenticated disclosure of internal Server Function endpoints

Impact In Next.js applications using App Router, Server Actions use server or use cache endpoints can be disclosed bypassing any authentication on the pages where these endpoints are usually used. Server Action IDs can be disclosed to unauthenticated users via publicly served client artifacts for...

Next.js: Unauthenticated disclosure of internal Server Function endpoints

Impact In Next.js applications using App Router, Server Actions use server or use cache endpoints can be disclosed bypassing any authentication on the pages where these endpoints are usually used. Server Action IDs can be disclosed to unauthenticated users via publicly served client artifacts for...

NPM: Next.js: Denial of Service in App Router using Server Actions

NPM: Next.js: Denial of Service in App Router using Server Actions vulnerability discovered by ? in WordPress Npm next versions = 13.0.0, 15.5.21...

Allocation of Resources Without Limits or Throttling

Overview next is a react framework. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the areAllActionIdsValid validation in server action form submission handling. An attacker can exhaust CPU and block other requests in the same...

Next.js: Denial of Service in App Router using Server Actions

Impact Crafted requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive CPU usage blocking processing of further requests in the same process. Workarounds No workaround exists besides upgrading. Applications using Pages Router or not using...

GHSA-M99W-X7HQ-7VFJ Next.js: Denial of Service in App Router using Server Actions

Impact Crafted requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive CPU usage blocking processing of further requests in the same process. Workarounds No workaround exists besides upgrading. Applications using Pages Router or not using...

PT-2026-63558

Name of the Vulnerable Software and Affected Versions Next.js versions 12.0.0 through 15.5.20 Next.js versions 16.0.0 through 16.2.10 Description Applications using App Router, Server Actions use server, or use cache endpoints may disclose these endpoints, bypassing authentication on the pages...

PT-2026-63564

Name of the Vulnerable Software and Affected Versions Next.js versions 14.1.1 through 15.5.20 Next.js versions 16.0.0 through 16.2.10 Description When a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host, leading to...

PT-2026-63556

Name of the Vulnerable Software and Affected Versions Next.js versions 13.0.0 through 15.5.20 Next.js versions 16.0.0 through 16.2.10 Description Crafted requests targeting applications using App Router with at least one Server Action can cause excessive CPU usage, which blocks the processing of...

CVE-2026-47129

NextCRM is open-source customer relationship management CRM software. Versions prior to 0.12.0 have a Broken Access Control BAC vulnerability in the activateUser and deactivateUser Next.js Server Actions of NextCRM. The application fails to verify if the requesting user holds the admin role...

CVE-2026-47129 NextCRM has Broken Access Control in Server Actions that allows any authenticated user to deactivate/activate arbitrary accounts

NextCRM is open-source customer relationship management CRM software. Versions prior to 0.12.0 have a Broken Access Control BAC vulnerability in the activateUser and deactivateUser Next.js Server Actions of NextCRM. The application fails to verify if the requesting user holds the admin role...

CVE-2026-47129

Summary of CVE-2026-47129 (NextCRM) : NextCRM versions prior to 0.12.0 contain a Broken Access Control flaw in the Next.js Server Actions activateUser/deactivateUser. The application does not verify that the requester has the admin role, allowing any authenticated user (even with member/viewer ro...

CVE-2026-47129 NextCRM has Broken Access Control in Server Actions that allows any authenticated user to deactivate/activate arbitrary accounts

NextCRM is open-source customer relationship management CRM software. Versions prior to 0.12.0 have a Broken Access Control BAC vulnerability in the activateUser and deactivateUser Next.js Server Actions of NextCRM. The application fails to verify if the requesting user holds the admin role...

PT-2026-61716

NextCRM is open-source customer relationship management CRM software. Versions prior to 0.12.0 have a Broken Access Control BAC vulnerability in the activateUser and deactivateUser Next.js Server Actions of NextCRM. The application fails to verify if the requesting user holds the admin role...

GHSA-75W3-GMQX-993Q Waku: Cross-Origin CSRF on RSC Server Action Dispatch

Summary Waku's RSC request dispatcher invokes server actions without validating the request's Origin or Sec-Fetch-Site header. A cross-origin web attacker can therefore cause a victim browser to issue an authenticated POST to a registered server action endpoint using a CORS-safelisted content typ...

next.js: Next.js: Denial of Service via crafted POST requests to server actions

A flaw was found in Next.js. Applications utilizing Partial Prerendering via the Cache Components feature are susceptible to connection exhaustion. A remote attacker can send crafted POST requests to a server action, triggering a request-body handling deadlock. This leaves connections open,...