← CVE Intelligence

CVE-2026-27942

fast-xml-parser has stack overflow in XMLBuilder with preserveOrder PUBLISHED

Description (CNA)

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. Prior to version 5.3.8, the application crashes with stack overflow when user use XML builder with `preserveOrder:true`. Version 5.3.8 fixes the issue. As a workaround, use XML builder with `preserveOrder:false` or check the input data before passing to builder.

Affected (CNA)

Vendor / productVersions
NaturalIntelligence / fast-xml-parseraffected < 5.3.8

CWE

CWE-120

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.