CVE-2026-25128 - fast-xml-parser has RangeError DoS Numeric Entities Bug

CVE-2026-25128 - fast-xml-parser has RangeError DoS Numeric Entities Bug

https://cvefeed.io/rssfeed/latest.atom / Fri, 01/30/2026 - 20:00
CVE ID : CVE-2026-25128
Published : Jan. 30, 2026, 4:16 p.m. | 2 hours, 43 minutes ago
Description : fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. In versions 4.3.6 through 5.3.3, a RangeError vulnerability exists in the numeric entity processing of fast-xml-parser when parsing XML with out-of-range entity code points (e.g., `` or ``). This causes the parser to throw an uncaught exception, crashing any application that processes untrusted XML input. Version 5.3.4 fixes the issue.
Severity: 7.5 | HIGH
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