{"id":"CVE-2021-26194","details":"An issue was discovered in JerryScript 2.4.0. There is a heap-use-after-free in ecma_is_lexical_environment in the ecma-helpers.c file.","modified":"2026-03-14T10:49:19.677837Z","published":"2021-06-10T23:15:08.333Z","references":[{"type":"FIX","url":"https://github.com/jerryscript-project/jerryscript/issues/4445"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jerryscript-project/jerryscript","events":[{"introduced":"0"},{"last_affected":"8ba0d1b6ee5a065a42f3b306771ad8e3c0d819bc"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"2.4.0"}]}}],"versions":["v2.0","v2.1.0","v2.2.0","v2.3.0","v2.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26194.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}