Medium severity6.5NVD Advisory· Published Jul 2, 2025· Updated Jun 17, 2026
CVE-2025-52891
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 ), then a segmentation fault occurs. This issue has been patched in version 2.9.11. A workaround involves setting SecParseXmlIntoArgs to Off.
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Affected products
4- Range: 2.9.8 to <2.9.11
- osv-coords3 versionspkg:bitnami/modsecuritypkg:bitnami/modsecurity2pkg:rpm/opensuse/apache2-mod_security2&distro=openSUSE%20Tumbleweed
>= 2.9.8, < 3.0.12+ 2 more
- (no CPE)range: >= 2.9.8, < 3.0.12
- (no CPE)range: >= 2.9.8, < 2.9.11
- (no CPE)range: < 2.9.11-1.1
Patches
Vulnerability mechanics
References
2News mentions
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