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.
References
| Link | Resource |
|---|---|
| https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.6.0 | Product Release Notes |
| https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6 | Exploit Mitigation Vendor Advisory |
| https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6 | Exploit Mitigation Vendor Advisory |
Configurations
History
12 May 2026, 20:30
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:naturalintelligence:fast-xml-parser:*:*:*:*:*:*:*:* | |
| First Time |
Naturalintelligence
Naturalintelligence fast-xml-parser |
|
| References | () https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.6.0 - Product, Release Notes | |
| References | () https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6 - Exploit, Mitigation, Vendor Advisory |
07 May 2026, 16:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-07 15:16
Updated : 2026-05-12 20:30
NVD link : CVE-2026-41650
Mitre link : CVE-2026-41650
CVE.ORG link : CVE-2026-41650
JSON object : View
Products Affected
naturalintelligence
- fast-xml-parser
CWE
CWE-91
XML Injection (aka Blind XPath Injection)