Description

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.

INFO

Published Date :

2025-05-21T22:08:31.982Z

Last Modified :

2025-05-22T15:51:50.750Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-47947 vulnerability.

Vendors Products
Redhat
  • Enterprise Linux
  • Rhel Aus
  • Rhel E4s
  • Rhel Eus
  • Rhel Tus
Trustwave
  • Modsecurity
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-47947.

URL Resource
https://github.com/owasp-modsecurity/ModSecurity/pull/3389 cve-icon cve-icon cve-icon
https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-859r-vvv8-rm8r cve-icon cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-47947 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-47947 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact