{"cve":"CVE-2021-31684","nvd":{"published":"2021-06-01T20:15:08.480","modified":"2026-06-17T03:52:09.503","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-787"],"references":["https://github.com/netplex/json-smart-v1/issues/10","https://github.com/netplex/json-smart-v1/pull/11","https://github.com/netplex/json-smart-v2/issues/67","https://github.com/netplex/json-smart-v2/pull/68","https://lists.debian.org/debian-lts-announce/2023/03/msg00030.html"],"products":["json-smart_project:json-smart-v1","json-smart_project:json-smart-v2","oracle:utilities_framework"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-31684","score":0.02281,"percentile":0.83146,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-fg2v-w576-w4v3","url":"https://osv.dev/vulnerability/GHSA-fg2v-w576-w4v3","summary":"Out of bounds read in json-smart","modified":"2026-09-10T03:49:11.820364295Z","packages":[{"ecosystem":"Maven","name":"net.minidev:json-smart","purl":"pkg:maven/net.minidev/json-smart","ranges":[">=1.3.0 <1.3.3"],"fixed":["1.3.3"]},{"ecosystem":"Maven","name":"net.minidev:json-smart","purl":"pkg:maven/net.minidev/json-smart","ranges":[">=2.4.0 <2.4.4"],"fixed":["2.4.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}