{"id":"CVE-2020-23478","details":"Leo Editor v6.2.1 was discovered to contain a regular expression denial of service (ReDoS) vulnerability in the component plugins/importers/dart.py.","aliases":["GHSA-x38q-xg2h-rxgx","PYSEC-2021-338"],"modified":"2026-05-28T04:04:08.911965936Z","published":"2021-09-22T20:15:08.077Z","database_specific":{},"references":[{"type":"ADVISORY","url":"https://cwe.mitre.org/data/definitions/1333.html"},{"type":"FIX","url":"https://github.com/leo-editor/leo-editor/issues/1597"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/leo-editor/leo-editor","events":[{"introduced":"0"},{"last_affected":"49c5e4fa3cd617524f167e2e114f89d76549bbda"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"6.2.1"}],"cpe":"cpe:2.3:a:leoeditor:leo:6.2.1:*:*:*:*:*:*:*","source":"CPE_STRING"}}],"versions":["v6.2.1","v6.2","v6.2-b1","v6.0b1","5.7b2","5.7b1","5.5","5.5b1","5.4.1","5.4","5.4-b1","5.3","v5.2","broke-abbrev","Leo-5.1-final","Leo-5.1-b2","Leo-5.1-b1","old-rst-code-last-rev","Fixed-bug-149","Bug-149-stage-0-complete","last_working_recursive_import","Leo-5.0-final","Leo-5.0-b2","Leo-5.0-b1","Leo-5.0-a2","leo-5.0-a1","Leo-5.0-a1","last-good-commit","breaks-auto-completer","leo-4-11-final","leo-4-11-b1","Bug-135","4-11-a2","leo-4-11-a1","leo-4-10-final","leo-4-10-b1","leo-4-9-final","leo-4-9-rc1-a","leo-4-9-b4","leo-4-9-rc1","leo-4-9-b2","leo-4-9-b1","leo-4-8-final","leo-4-8-rc1","leo-4-8-b1","leo-4-8-a1","leo-4-7-1-final","leo-4-7-final","before-until-4-7-final","leo-4-7-rc1","leo-4-7-rc1-b","leo-4-7-rc1-a","before-open-with-work","leo-4-7-b3","leo-4-7-b2-as-released","leo-4-7-b2","before_unicode_mass_update","leo-4-6-b2","leo-4-6-b1","leo-4-5-1-august-14-2008","leo-4-5-1-final","leo-4-5-final","leo-4-5-rc2","leo-4-5-rc1","Leo-4-5-b3","Leo-4-5-b2","Leo-4-5-b1","leo-4-4-8-final","leo-4-4-8-rc1-a","leo-4-4-8-rc1","leo-4-4-8-b3","leo-4-4-8-b2","Leo-4-4-8-b1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-23478.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}