CVE-2021-31684

PoC —

CVSS 3.1

7.5 high

EPSS

2%p82

Published

Jun 1, 2021 (Jun 1, 2021)

Modified

Jun 17, 2026

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.

Vendors: json-smart project oracle
Products: json-smart-v1, json-smart-v2, utilities framework
Weakness: CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (2.3%)

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