# CVE-2026-44665

## Summary

- **CVE ID:** CVE-2026-44665
- **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 18, 2026

## Description

fast-xml-builder builds XML from JSON. Prior to 1.1.7, when an input data has quotes in attribute values but process entities is not enabled, it breaks the attribute value into multiple attributes. This gives the room for an attacker to insert unwanted attributes to the XML/HTML. This vulnerability is fixed in 1.1.7.

## Affected Products

- NaturalIntelligence — fast-xml-builder (< 1.1.7)

## References

- [CNA](https://github.com/NaturalIntelligence/fast-xml-builder/security/advisories/GHSA-5wm8-gmm8-39j9)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 11.1

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