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CVE PROGRAM SOURCE RECORD6.1 Medium

CVE-2026-41650

fast-xml-parser XMLBuilder: XML Comment and CDATA Injection via Unescaped Delimiters

Description

fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. Prior to version 5.7.0, XMLBuilder does not escape the "-->" sequence in comment content or the "]]>" sequence in CDATA sections when building XML from JavaScript objects. This allows XML injection when user-controlled data flows into comments or CDATA elements, leading to XSS, SOAP injection, or data manipulation. This issue has been patched in version 5.7.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

NaturalIntelligence fast-xml-parser

  • < 5.7.0affected

References