6.1
Medium
CVE-2026-44664 fast-xml-builder builds XML from JSON
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| fast-xml-builder | 1.1.5 | No fix stated |
References
- github.com github.com
Timeline
- Published
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