cvedb.io
CVE-2026-27942
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-02-26T02:16:22.357 · Last modified 2026-06-17T10:27:56.887

Summary

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 products

naturalintelligence — fast-xml-parser

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.