{"id":"CVE-2019-12401","aliases":["EUVD-2022-4413","GHSA-jq2w-w7v2-69q5"],"status":"published","title":"Apache Solr  vulnerable to XML Bomb","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.08547,"percentile":0.95095,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-776"],"published":"2019-09-10T14:06:54Z","modified":"2026-10-24T10:30:38Z","exploits":[{"source":"pocgithub","id":"mbadanoiu/CVE-2019-12401","title":"mbadanoiu/CVE-2019-12401","date":"2025-02-12","url":"https://github.com/mbadanoiu/CVE-2019-12401"}],"fixes":[{"ecosystem":"Maven","package":"org.apache.solr:solr-core","fixed_in":["5.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.solr:solr-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.0"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.solr:solr-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.0"}]}],"versions":["1.3.0","1.4.0","1.4.1","3.1.0","3.2.0","3.3.0","3.4.0","3.5.0","3.6.0","3.6.1","3.6.2","4.0.0","4.0.0-ALPHA","4.0.0-BETA","4.1.0","4.10.0","4.10.1","4.10.2","4.10.3","4.10.4","4.2.0","4.2.1","4.3.0","4.3.1","4.4.0","4.5.0","4.5.1","4.6.0","4.6.1","4.7.0","4.7.1","4.7.2","4.8.0","4.8.1","4.9.0","4.9.1"]}],"products":[{"vendor":"apache","product":"solr"}],"references":[{"url":"https://lists.apache.org/thread.html/7ab5e95a1a0b4f35ffe53f1eb0cb74b4348b49d41b72ac155b843fa2%40%3Cgeneral.lucene.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/048ae6e4f84a88e8856f766320b48ad91f9fca2c6f621aa2c40088fe%40%3Cdev.lucene.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://www.openwall.com/lists/oss-security/2019/09/10/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party 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Link","Mailing List","Vendor Advisory","advisory","web"]},{"url":"https://lists.apache.org/thread.html/0ec231c5ed8d242890e21806d25fdd47f80cc47cac278d2fc1c9c579%40%3Cdev.lucene.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://security.netapp.com/advisory/ntap-20190926-0002/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-12401-XML%20Bomb-Apache%20Solr","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-12401","tags":["advisory"]},{"url":"https://lists.apache.org/thread.html/048ae6e4f84a88e8856f766320b48ad91f9fca2c6f621aa2c40088fe@%3Cdev.lucene.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/0ec231c5ed8d242890e21806d25fdd47f80cc47cac278d2fc1c9c579@%3Cdev.lucene.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/1c92300643f48f13bc59b15e3f886ba62bae1798c7d4c2e5c1ece09b@%3Cannounce.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/521d10a19bfb590f86dff41820ccfb11e92281f233a12c882650931e@%3Cdev.lucene.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/60a924662ead9aeea74e8ea128d9ca935f8de925aa71b15ab2787d6a@%3Csolr-user.lucene.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/7ab5e95a1a0b4f35ffe53f1eb0cb74b4348b49d41b72ac155b843fa2@%3Cgeneral.lucene.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/db8eaca456d03c00a66cbe37548978318d424b9997e3fd7f5c65dffe@%3Cdev.lucene.apache.org%3E","tags":["web"]},{"url":"https://issues.apache.org/jira/browse/SOLR-13750","tags":["web"]},{"url":"https://github.com/advisories/GHSA-jq2w-w7v2-69q5"},{"url":"https://security.netapp.com/advisory/ntap-20190926-0002","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2019-12401","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.","status":"published","published":"2019-09-10T14:06:54Z","modified":"2024-08-04T23:17:40.122Z","updated_at":"2026-11-02T14:20:23.697579Z"}],"euvd":[{"id":"EUVD-2022-4413","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.","status":"published","published":"2019-09-10T14:06:54Z","modified":"2024-08-04T23:17:40Z","updated_at":"2026-11-03T02:40:45.973526Z"}],"ghsa":[{"id":"GHSA-jq2w-w7v2-69q5","title":"Apache Solr  vulnerable to XML Bomb","description":"Solr versions prior to 5.0.0 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.","status":"published","published":"2022-05-24T22:00:29Z","modified":"2023-03-14T05:06:34Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-776"],"updated_at":"2026-11-02T14:36:48.041653Z"}],"nvd":[{"id":"CVE-2019-12401","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.","status":"published","published":"2019-09-10T15:15:11.737Z","modified":"2026-06-17T02:14:34.663Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-776"],"updated_at":"2026-11-02T14:05:25.691233Z"}],"osv":[{"id":"CVE-2019-12401","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.","status":"published","published":"2019-09-10T15:15:11.737Z","modified":"2026-10-24T10:30:38.228067074Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:10.718934Z"},{"id":"GHSA-jq2w-w7v2-69q5","title":"Apache Solr  vulnerable to XML Bomb","description":"Solr versions prior to 5.0.0 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.","status":"published","published":"2022-05-24T22:00:29Z","modified":"2024-02-21T05:33:21.582986Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-776"],"updated_at":"2026-11-02T15:46:50.687609Z"}]}}