{"id":"BIT-mediawiki-2022-34750","details":"An issue was discovered in MediaWiki through 1.38.1. The lemma length of a Wikibase lexeme is currently capped at a thousand characters. Unfortunately, this length is not validated, allowing much larger lexemes to be created, which introduces various denial-of-service attack vectors within the Wikibase and WikibaseLexeme extensions. This is related to Special:NewLexeme and Special:NewProperty.","aliases":["CVE-2022-34750"],"modified":"2025-04-03T14:40:37.652Z","published":"2024-03-06T11:04:59.679Z","database_specific":{"cpes":["cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://gerrit.wikimedia.org/r/q/I8171bfef73e525d73efa60b407ce147130ea4742"},{"type":"WEB","url":"https://gerrit.wikimedia.org/r/q/Id89a9b08e40f075d2d422cafd03668dff3ce7fc9"},{"type":"WEB","url":"https://phabricator.wikimedia.org/T308659"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-34750"}],"affected":[{"package":{"name":"mediawiki","ecosystem":"Bitnami","purl":"pkg:bitnami/mediawiki"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.38.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/mediawiki/BIT-mediawiki-2022-34750.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.7.3"}