CVE-2025-52891

Description

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. In versions 2.9.8 to before 2.9.11, an empty XML tag can cause a segmentation fault. If SecParseXmlIntoArgs is set to On or OnlyArgs, and the request type is application/xml, and at least one XML tag is empty (eg <foo></foo>), then a segmentation fault occurs. This issue has been patched in version 2.9.11. A workaround involves setting SecParseXmlIntoArgs to Off.

Reserved 2025-06-20 | Published 2025-07-02 | Updated 2025-07-02 | Assigner GitHub_M

Problem types

CWE-20: Improper Input Validation

Product status

>= 2.9.8, < 2.9.11
affected

References

github.com/...curity/security/advisories/GHSA-gw9c-4wfm-vj3x

github.com/...ommit/ecd7b9736836eee391d25f35d5bd06a3ce35a45d

cve.org (CVE-2025-52891)

nvd.nist.gov (CVE-2025-52891)

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