https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-28T09:31:17.716380+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/fkie_cve-2026-44664 fkie_cve-2026-44664 2026-09-28T09:31:17.718257+00:00

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.

 https://vulnerability.circl.lu/vuln/ghsa-45c6-75p6-83cc GHSA-45c6-75p6-83cc — fast-xml-builder Comment Value regex can be bypassed 2026-09-28T09:31:17.718340+00:00

Affected: npm: fast-xml-builder

# Summary The fix for https://github.com/advisories/GHSA-gh4j-gqv2-49f6 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.

### Impact Any application with comment property enabled allow attacker to inject malicious or unwanted code like JS script tag in the XML/HTML output.

### Workarounds Check for the presence of 3 consecutive dashes externally in the property value used for comment tag.