{"id":"CVE-2019-18848","aliases":["GHSA-cff7-6h4q-q5pj"],"url":"https://o3.security/vulnerability/CVE-2019-18848","summary":"JSON-jwt Gem lacked element count during splitting of JWE string","details":"The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.","published":"2019-11-12T15:15:10.880Z","modified":"2026-07-08T05:53:25.053143928Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"json-jwt","fixedVersion":"1.11.0"}],"fix":{"url":"https://github.com/nov/json-jwt/commit/ada16e772906efdd035e3df49cb2ae372f0f948a","label":"nov/json-jwt@ada16e7"},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/10/msg00001.html"},{"type":"FIX","url":"https://github.com/nov/json-jwt/commit/ada16e772906efdd035e3df49cb2ae372f0f948a"},{"type":"FIX","url":"https://github.com/nov/json-jwt/compare/v1.10.2...v1.11.0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:53:25.053143928Z"}}