# CVE-2026-44664

## Summary

- **CVE ID:** CVE-2026-44664
- **Severity:** MEDIUM
- **CVSS Score:** 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
- **CWE:** CWE-91
- **Published:** May 13, 2026
- **Last Modified:** May 13, 2026

## Description

fast-xml-builder builds XML from JSON. In 1.1.5, the fix for CVE-2026-41650 in fast-xml-parser sanitizes -- sequences in XML comment content using .replace(/--/g, '- -'). This skip the values containing three consecutive dashes (e.g., --->...), allowing an attacker to break out of an XML comment and inject arbitrary XML/HTML content. This vulnerability is fixed in 1.1.6.

## Affected Products

- NaturalIntelligence — fast-xml-builder (1.1.5)

## References

- [CNA](https://github.com/NaturalIntelligence/fast-xml-builder/security/advisories/GHSA-45c6-75p6-83cc)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.19%
- **EPSS Percentile:** 9.2

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._