ApostropheCMS: Host header controls server-side image fetch origin in @apostrophecms/ai-helper, enabling authenticated SSRF

Summary The @apostrophecms/ai-helper package builds the URL for a server-side image fetch by resolving a storage-relative path against req.baseUrl. When the site does not set a global base URL the default, req.baseUrl is derived from the incoming HTTP Host header. An authenticated editor can...

CVE-2026-113671

In ApostropheCMS , a vulnerability exists in the @apostrophecms/ai-helper component (versions 1.0.0-beta.10 through 1.0.0-beta.13 ). An authenticated editor with image-generation capabilities can create a base64-generated image record without a provider URL. On deployments using local relative st...

CVE-2026-113671 ApostropheCMS: Host header controls server-side image fetch origin in @apostrophecms/ai-helper, enabling authenticated SSRF

ApostropheCMS is an open-source Node.js content management system. From 1.0.0-beta.10 until 1.0.0-beta.13 of the AI helper, an editor with image-generation capability can create a base64-generated image record without a stored provider URL and invoke image acceptance on a deployment using local...