{
  "threat_severity" : "Moderate",
  "public_date" : "2025-07-02T15:03:34Z",
  "bugzilla" : {
    "description" : "mod_security: ModSecurity segmentation fault",
    "id" : "2375926",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2375926"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.3",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
    "status" : "draft"
  },
  "cwe" : "CWE-20",
  "details" : [ "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.", "An XML parsing flaw has been discovered in Apache ModSecurity. In specific versions an empty XML tag may lead to a segmentation fault and process crash as a result. To exploit this flaw the `SecParseXmlIntoArgs` value must be set to `On` or `OnlyArgs`." ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "mod_security",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "mod_security",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "mod_security",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat JBoss Core Services",
    "fix_state" : "Not affected",
    "package_name" : "jbcs-httpd24-mod_security",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1"
  }, {
    "product_name" : "Red Hat JBoss Core Services",
    "fix_state" : "Not affected",
    "package_name" : "mod_security",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-52891\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-52891\nhttps://github.com/owasp-modsecurity/ModSecurity/commit/ecd7b9736836eee391d25f35d5bd06a3ce35a45d\nhttps://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-gw9c-4wfm-vj3x" ],
  "name" : "CVE-2025-52891",
  "mitigation" : {
    "value" : "Users unable to upgrade may set `SecParseXmlIntoArgs` to `Off`",
    "lang" : "en:us"
  },
  "csaw" : false
}