CVE-2026-41650

Name: CVE-2026-41650
Creator: NVD / NIST
Published: 2026-05-07T15:16:07.767+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2026-41650 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.24%

14.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-91

Affected Software

Vendor	Product	Versions
Naturalintelligence	Fast-Xml-Parser	< 5.7.0

References

https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.6.0Product, Release Notes
https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6Exploit, Mitigation, Vendor Advisory
https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6Exploit, Mitigation, Vendor Advisory

Timeline

Published: May 7, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-41650?

How severe is CVE-2026-41650?

CVE-2026-41650 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-41650?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-41650?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST