Bump @xmldom/xmldom from 0.8.12 to 0.8.13

[dependabot]

Bumps @xmldom/xmldom from 0.8.12 to 0.8.13.

Release notes

Sourced from @​xmldom/xmldom's releases.

0.8.13

Commits

Fixed

• Security: XMLSerializer.serializeToString() (and Node.toString(), NodeList.toString()) now accept a requireWellFormed option (fourth argument, after isHtml and nodeFilter). When { requireWellFormed: true } is passed, the serializer throws InvalidStateError for injection-prone node content, preventing XML injection via attacker-controlled node data. GHSA-j759-j44w-7fr8 GHSA-x6wf-f3px-wcqx GHSA-f6ww-3ggp-fr8h
  • Comment: throws when data contains -->
  • ProcessingInstruction: throws when data contains ?>
  • DocumentType: throws when publicId fails PubidLiteral, systemId fails SystemLiteral, or internalSubset contains ]>
• Security: DOM traversal operations (XMLSerializer.serializeToString(), Node.prototype.normalize(), Node.prototype.cloneNode(true), Document.prototype.importNode(node, true), node.textContent getter, getElementsByTagName() / getElementsByTagNameNS() / getElementsByClassName() / getElementById()) are now iterative. Previously, deeply nested DOM trees would exhaust the JavaScript call stack and throw an unrecoverable RangeError. GHSA-2v35-w6hq-6mfw

Thank you, @​Jvr2022, @​praveen-kv, @​TharVid, @​decsecre583, @​tlsbollei, @​KarimTantawey, for your contributions

Changelog

Sourced from @​xmldom/xmldom's changelog.

0.8.13

Fixed

• Security: XMLSerializer.serializeToString() (and Node.toString(), NodeList.toString()) now accept a requireWellFormed option (fourth argument, after isHtml and nodeFilter). When { requireWellFormed: true } is passed, the serializer throws InvalidStateError for injection-prone node content, preventing XML injection via attacker-controlled node data. GHSA-j759-j44w-7fr8 GHSA-x6wf-f3px-wcqx GHSA-f6ww-3ggp-fr8h
  • Comment: throws when data contains -->
  • ProcessingInstruction: throws when data contains ?>
  • DocumentType: throws when publicId fails PubidLiteral, systemId fails SystemLiteral, or internalSubset contains ]>
• Security: DOM traversal operations (XMLSerializer.serializeToString(), Node.prototype.normalize(), Node.prototype.cloneNode(true), Document.prototype.importNode(node, true), node.textContent getter, getElementsByTagName() / getElementsByTagNameNS() / getElementsByClassName() / getElementById()) are now iterative. Previously, deeply nested DOM trees would exhaust the JavaScript call stack and throw an unrecoverable RangeError. GHSA-2v35-w6hq-6mfw

Thank you, @​Jvr2022, @​praveen-kv, @​TharVid, @​decsecre583, @​tlsbollei, @​KarimTantawey, for your contributions

0.9.9

Added

• implement ParentNode.children getter [#960](https://github.com/xmldom/xmldom/issues/960) / [#410](https://github.com/xmldom/xmldom/issues/410)

Fixed

• Security: createCDATASection now throws InvalidCharacterError when data contains "]]>", as required by the WHATWG DOM spec. GHSA-wh4c-j3r5-mjhp
• Security: XMLSerializer now splits CDATASection nodes whose data contains "]]>" into adjacent CDATA sections at serialization time, preventing XML injection via mutation methods (appendData, replaceData, .data =, .textContent =). GHSA-wh4c-j3r5-mjhp
• correctly traverse ancestor chain in Node.contains [#931](https://github.com/xmldom/xmldom/issues/931)

Code that passes a string containing "]]>" to createCDATASection and relied on the previously unsafe behavior will now receive InvalidCharacterError. Use a mutation method such as appendData if you intentionally need "]]>" in a CDATASection node's data.

Chore

• updated dependencies

Thank you, @​stevenobiajulu, @​yoshi389111, @​thesmartshadow, for your contributions

Commits

• e5c1480 0.8.13
• 9611e20 style: drop unused import in test file
• dc4dff3 docs: add 0.8.13 changelog entry
• 842fa38 fix: prevent stack overflow in normalize (GHSA-2v35-w6hq-6mfw)
• aeff69f test: add normalize behavioral coverage to node.test.js
• cbdb0d7 fix: make walkDOM iterative to prevent stack overflow (GHSA-2v35-w6hq-6mfw)
• 0b543d3 test: assert namespace declarations are isolated between siblings in serializ...
• c007c51 refactor: migrate serializeToString to walkDOM
• 2bb3899 test: add serializeToString coverage for uncovered branches
• e69f38d refactor: migrate importNode to walkDOM
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by karfau, a new releaser for @​xmldom/xmldom since your current version.

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Project	Deployment	Actions	Updated (UTC)
simplypdf	Ready	Preview, Comment	May 3, 2026 5:08am

[ArshVermaGit]

This pull request upgrades @xmldom/xmldom from 0.8.12 to 0.8.13 and primarily delivers important security and stability improvements with minimal risk of breaking changes. The most notable addition is the new requireWellFormed option in XMLSerializer.serializeToString(), which enforces stricter validation and helps prevent XML injection by throwing errors on malformed or unsafe node content. It also introduces stricter checks for Comment, ProcessingInstruction, and DocumentType nodes, aligning behavior more closely with standards. Additionally, several DOM traversal methods have been refactored to use iterative implementations, eliminating the risk of stack overflows when handling deeply nested structures. Overall, this is a valuable dependency bump that strengthens security posture and runtime resilience, though consumers should verify that any serialization logic or edge-case XML handling remains compatible with the stricter validations.