A newly discovered denial-of-service vulnerability in the ModSecurity Web Application Firewall (WAF) engine has security experts on high alert. The flaw, designated CVE-2025-52891, affects specific versions of mod_security2 and can be triggered by processing XML requests containing empty tags, potentially causing complete service disruption. The vulnerability impacts mod_security2 versions 2.9.8, 2.9.9, and 2.9.10, but only when administrators have
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