CVEvulnerability

CVE-2026-25128

7.5 HIGH Published 2026-01-30 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-01-30
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-20, CWE-248

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 5.0.9 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.

Affected configurations

• naturalintelligence fast-xml-parser (>= 5.0.9 < 5.3.4)

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-248 Uncaught Exception weakness

References