CVE-2026-104259

ModSecurity is an open source, cross platform web application firewall WAF engine for Apache, IIS and Nginx. Prior to 2.9.15 and 3.0.17, msrefnremoveCommentsexecute in apache2/retfns.c and inplace in src/actions/transformations/removecomments.cc implement t:removeComments by copying the character...

CVE-2026-104259 ModSecurity: removeComments Transformation Fails to Strip Adjacent Comments, Enabling WAF Rule Bypass

ModSecurity is an open source, cross platform web application firewall WAF engine for Apache, IIS and Nginx. Prior to 2.9.15 and 3.0.17, msrefnremoveCommentsexecute in apache2/retfns.c and inplace in src/actions/transformations/removecomments.cc implement t:removeComments by copying the character...