Description
When an element declares a namespace prefix, xmldom copies the entire in-scope namespace map into a fresh object and keeps that copy on the element while it is open on the parse stack.
Recommendation
Update the @xmldom/xmldom package to the latest compatible version. Followings are version details:
Affected version(s): **>= 0.9.0, <= 0.9.11 >= 0.7.0, <= 0.8.14** Patched version(s): **0.9.12 0.8.15**
References
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Start a free scanRelated Issues
- xmldom: Quadratic-memory consumption - xmldom - CVE-2026-83615
- xmldom: Quadratic-time parsing via the malformed-input recovery path — `parseElementStartPart` re-scan and `normalize()` - CVE-2026-83614
- xmldom: End-tag Whitespace-Trim Regex ReDoS — quadratic backtracking in the 0.8.x end-tag parser - CVE-2026-83619
- xmldom PI grammar regex ReDoS: quadratic backtracking on unterminated processing instructions - CVE-2026-83606
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See something that needs correcting? Let us knowUpdated September 08, 2026