{"id":"CVE-2021-31684","aliases":["GHSA-fg2v-w576-w4v3"],"url":"https://o3.security/vulnerability/CVE-2021-31684","summary":"Out of bounds read in json-smart","details":"A vulnerability was discovered in the indexOf function of JSONParserByteArray in JSON Smart versions 1.3 and 2.4 which causes a denial of service (DOS) via a crafted web request.","published":"2021-06-01T20:15:08.480Z","modified":"2026-07-08T05:59:12.691773324Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.023,"percentile":0.81829,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"net.minidev:json-smart","fixedVersion":"1.3.3"},{"ecosystem":"Maven","name":"net.minidev:json-smart","fixedVersion":"2.4.4"}],"fix":{"url":"https://github.com/netplex/json-smart-v1/pull/11","label":"netplex/json-smart-v1#11"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/03/msg00030.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujul2022.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20240621-0006/"},{"type":"REPORT","url":"https://github.com/netplex/json-smart-v1/issues/10"},{"type":"REPORT","url":"https://github.com/netplex/json-smart-v2/issues/67"},{"type":"FIX","url":"https://github.com/netplex/json-smart-v1/pull/11"},{"type":"FIX","url":"https://github.com/netplex/json-smart-v2/pull/68"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpujan2022.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:59:12.691773324Z"}}