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-2026-63556

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...

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...

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 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...

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,...

CVE-2026-42190

RedwoodSDK is a server-first React framework. From version 1.0.0-beta.50 to before version 1.2.3, server actions in rwsdk apply HTTP method enforcement but no origin validation. A request originating from a different origin that the browser treats as same-site can invoke a server action with the...

CVE-2026-42190

RedwoodSDK is a server-first React framework. From version 1.0.0-beta.50 to before version 1.2.3, server actions in rwsdk apply HTTP method enforcement but no origin validation. A request originating from a different origin that the browser treats as same-site can invoke a server action with the...

CVE-2026-42190 RedwoodSDK: Same-site CSRF in in server actions

RedwoodSDK is a server-first React framework. From version 1.0.0-beta.50 to before version 1.2.3, server actions in rwsdk apply HTTP method enforcement but no origin validation. A request originating from a different origin that the browser treats as same-site can invoke a server action with the...

CVE-2026-42190 RedwoodSDK: Same-site CSRF in in server actions

RedwoodSDK is a server-first React framework. From version 1.0.0-beta.50 to before version 1.2.3, server actions in rwsdk apply HTTP method enforcement but no origin validation. A request originating from a different origin that the browser treats as same-site can invoke a server action with the...

CVE-2026-42190

RedwoodSDK is a server-first React framework. From version 1.0.0-beta.50 to before version 1.2.3, server actions in rwsdk apply HTTP method enforcement but no origin validation. A request originating from a different origin that the browser treats as same-site can invoke a server action with the...

EUVD-2026-28823

RedwoodSDK is a server-first React framework. From version 1.0.0-beta.50 to before version 1.2.3, server actions in rwsdk apply HTTP method enforcement but no origin validation. A request originating from a different origin that the browser treats as same-site can invoke a server action with the...

CVE-2026-42190

RedwoodSDK (rwsdk) server actions from version 1.0.0-beta.50 up to, but not including, 1.2.3, did not validate the Origin header, enabling same-site CSRF with the victim’s session cookie. The issue is fixed in version 1.2.3. Affected component: server actions (serverAction, RSC protocol); impact:...

CVE-2026-42190 RedwoodSDK: Same-site CSRF in in server actions

RedwoodSDK is a server-first React framework. From version 1.0.0-beta.50 to before version 1.2.3, server actions in rwsdk apply HTTP method enforcement but no origin validation. A request originating from a different origin that the browser treats as same-site can invoke a server action with the...