CVE-2026-44665
Medium
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.
SeverityMedium
CVSS6.1
Exploit probability—
ProductFast-xml-builder
PublishedMay 13, 2026
First seenMay 13, 2026
Weakness typeCWE-91CWE-91
How to fix
Update
- fast-xml-builder1.1.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fast-xml-buildernpm | v < 1.1.7 | 1.1.7 |
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