CVE-2026-41650 (GCVE-0-2026-41650)

Vulnerability from cvelistv5 – Published: 2026-05-07 13:36 – Updated: 2026-05-07 15:08
VLAI
Title
fast-xml-parser XMLBuilder: XML Comment and CDATA Injection via Unescaped Delimiters
Summary
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.
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-07 15:08 UTC
CWE
  • CWE-91 - XML Injection (aka Blind XPath Injection)
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8035 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
NaturalIntelligence fast-xml-parser Affected: < 5.7.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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