Vulnerability library
Security checkMay 08, 2026

xmldom: Uncontrolled recursion in XML serialization leads to DoS - xmldom

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High severitynpmxmldom

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Description

Seven recursive traversals in lib/dom.js operate without a depth limit. A sufficiently deeply nested DOM tree causes a RangeError: Maximum call stack size exceeded, crashing the application.

Reported operations:

  • Node.prototype.normalize() — reported by @praveen-kv (email 2026-04-05) and @KarimTantawey (GHSA-fwmp-8wwc-qhv6, via DOMParser.parseFromString())
  • `XMLSerializer.

Recommendation

No fix is available yet. Followings are affected versions:

  • <= 0.6.0

References

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Related Issues

See something that needs correcting? Let us knowUpdated May 08, 2026