CVE-2026-113671

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

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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 relative storage with no trusted global base URL. The server resolves the fixed uploads path against a request-controlled Host-derived origin, enabling bounded server-side requests to an attacker-selected host, port, and HTTP origin, but not arbitrary-path retrieval or the stored-provider and absolute-storage configurations. This issue is fixed in AI helper 1.0.0-beta.13.

CVSS 4.3 · Moyenne · EPSS 0,3% · Code d’exploitation public · Correctif disponible

Publication

2026-10-20T17:43:53.227Z

Mise à jour

2026-10-20T18:21:05.814Z

Pile logicielle: node

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