CVE-2026-59171 - JSON-java: JSONTokener Unbounded Numeric String Resource-Exhaustion DoS

CVE-2026-59171 - JSON-java: JSONTokener Unbounded Numeric String Resource-Exhaustion DoS

https://cvefeed.io/rssfeed/latest.atom / Fri, 11/06/2026 - 22:52
CVE ID :CVE-2026-59171
Published : Nov. 6, 2026, 9:17 p.m. | 17 minutes ago
Description :JSON-java is a reference implementation of a JSON package in Java. From version 20150729 through 20260522, JSONTokener.nextSimpleValue can accumulate unbounded numeric tokens before JSONObject.stringToNumber passes them to BigInteger or BigDecimal conversion without a length limit. An application that parses attacker-controlled JSON or XML through JSONObject, JSONArray, or XML.toJSONObject can spend super-linear CPU time converting a sufficiently long numeric literal, blocking request-handling threads and causing denial of service. Strict mode and keep-strings settings in JSONParserConfiguration do not prevent the affected conversion path. Version 20260719 limits numeric conversion length.
Severity: 5.9 | MEDIUM
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