Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-115935

Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-94 Control incorrecto de generación de código (Inyección de código)
Fecha de publicación:
23/10/2026
Última modificación:
26/10/2026

Descripción

*** Pendiente de traducción *** The app/process-api-response-headers action accepts fake Craft API response headers from any authenticated control panel user.<br /> <br /> <br /> <br /> A non-admin user with only accessCp can place newline characters in X-Craft-Plugin-Licenses. Craft passes this value to its .env writer without removing the newlines.<br /> <br /> <br /> <br /> This lets the user insert a new attacker-known CRAFT_SECURITY_KEY into .env. After Craft loads that key, the user can forge a signed login redirect containing a Twig system() callback.<br /> <br /> <br /> <br /> This is different from the previous report. That report reads the existing key through a Twig sandbox bypass. This report replaces the key through fake API headers and CRLF injection. Fixing either source does not fix the other.