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CVE-2026-41650

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

Description (CNA)

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 (CNA)

Vendor / productVersions
NaturalIntelligence / fast-xml-parseraffected < 5.7.0

CWE

CWE-91

References

ADP enrichment

CISA-ADP

No English description supplied.