CVE-2025-47947

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions up to and including 2.9.8 are vulnerable to denial of service in one special case (in stable released versions): when the payload's content type is `application/json`, and there is at least one rule which does a `sanitiseMatchedBytes` action. A patch is available at pull request 3389 and expected to be part of version 2.9.9. No known workarounds are available.
Configurations

No configuration.

History

22 May 2025, 16:15

Type Values Removed Values Added
References () https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-859r-vvv8-rm8r - () https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-859r-vvv8-rm8r -
Summary
  • (es) ModSecurity es un motor de firewall de aplicaciones web (WAF) multiplataforma de código abierto para Apache, IIS y Nginx. Las versiones hasta la 2.9.8 incluida son vulnerables a denegación de servicio en un caso especial (en versiones estables): cuando el tipo de contenido del payload es `application/json` y existe al menos una regla que ejecuta la acción `sanitiseMatchedBytes`. Hay un parche disponible en la solicitud de incorporación de cambios 3389 y se espera que forme parte de la versión 2.9.9. No se conocen workarounds.

21 May 2025, 22:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-05-21 22:15

Updated : 2025-05-23 15:55


NVD link : CVE-2025-47947

Mitre link : CVE-2025-47947

CVE.ORG link : CVE-2025-47947


JSON object : View

Products Affected

No product.

CWE
CWE-1050

Excessive Platform Resource Consumption within a Loop