CVE-2022-39353

xmldom allows multiple root nodes in a DOM

State
Published
Severity
9.4 Critical
Published
Nov 2, 2022
Updated
Apr 22, 2025
Reserved
Sep 2, 2022

Read the record on cve.org

Description

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. xmldom parses XML that is not well-formed because it contains multiple top level elements, and adds all root nodes to the `childNodes` collection of the `Document`, without reporting any error or throwing. This breaks the assumption that there is only a single root node in the tree, which led to issuance of CVE-2022-39299 as it is a potential issue for dependents. Update to @xmldom/xmldom@~0.7.7, @xmldom/xmldom@~0.8.4 (dist-tag latest) or @xmldom/xmldom@>=0.9.0-beta.4 (dist-tag next). As a workaround, please one of the following approaches depending on your use case: instead of searching for elements in the whole DOM, only search in the `documentElement`or reject a document with a document that has more then 1 `childNode`.

Scores

CVSSScoreVectorSource
3.19.4 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:HGitHub_M

Weaknesses

  • CWE-20 Improper Input Validation
  • CWE-1288 Improper Validation of Consistency within Input

Affected Products

ProductVersions
xmldomxmldom
  • <= 0.6.0Affected
  • < 0.7.7Affected
  • >= 0.8.0, < 0.8.4Affected
  • >= 0.9.0-beta.1, < 0.9.0-beta.4Affected

References

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