{"cve":"CVE-2019-12401","nvd":{"published":"2019-09-10T15:15:11.737","modified":"2026-06-17T02:14:34.663","status":"Modified","description":"Solr versions 1.3.0 to 1.4.1, 3.1.0 to 3.6.2 and 4.0.0 to 4.10.4 are vulnerable to an XML resource consumption attack (a.k.a. Lol Bomb) via it’s update handler.?By leveraging XML DOCTYPE and ENTITY type elements, the attacker can create a pattern that will expand when the server parses the XML causing OOMs.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-776"],"references":["http://mail-archives.us.apache.org/mod_mbox/www-announce/201909.mbox/%3CCAECwjAXU4%3DkAo5DeUJw7Kvk67sgCmajAN7LGZQNjbjZ8gv%3DBdw%40mail.gmail.com%3E","http://www.openwall.com/lists/oss-security/2019/09/10/1","https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-12401-XML%20Bomb-Apache%20Solr","https://lists.apache.org/thread.html/048ae6e4f84a88e8856f766320b48ad91f9fca2c6f621aa2c40088fe%40%3Cdev.lucene.apache.org%3E","https://lists.apache.org/thread.html/0ec231c5ed8d242890e21806d25fdd47f80cc47cac278d2fc1c9c579%40%3Cdev.lucene.apache.org%3E"],"products":["apache:solr"],"source":"nvd","synced_at":"2026-10-19T20:58:39.700375520+00:00"},"epss":{"cve":"CVE-2019-12401","score":0.08547,"percentile":0.95061,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jq2w-w7v2-69q5","url":"https://osv.dev/vulnerability/GHSA-jq2w-w7v2-69q5","summary":"Apache Solr  vulnerable to XML Bomb","modified":"2024-02-21T05:33:21.582986Z","packages":[{"ecosystem":"Maven","name":"org.apache.solr:solr-core","purl":"pkg:maven/org.apache.solr/solr-core","ranges":["<5.0.0"],"fixed":["5.0.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}