CVE•Published 2026-05-07•Modified 2026-05-12•0 articles on news•5 live references•NVD data

CVE-2026-41650Naturalintelligence · Fast-xml-parser

Vulnerability data via NVD (ingested)

CVSS v3.1

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS percentile

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Weaknesses (CWE)

CWE-91XML Injection (aka Blind XPath Injection)

Description

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.

Timeline

Published 2026-05-07

Modified 2026-05-12

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-41650

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Naturalintelligence Fast-xml-parser"

All exposed Naturalintelligence Fast-xml-parser instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Fast-xml-parser"

HTTP body or banner mentions "Fast-xml-parser" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-41650