Vulnerability · Published Nov 2, 2022 · Assigned by GitHub_M
CVE-2022-39353xmldom allows multiple root nodes in a DOM
Critical 9.4
In plain English
A critical-severity improper input validation in xmldom from xmldom. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 75% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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`.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | node-xmldom | 0.8.6-1 | DEBIAN-CVE-2022-39353 |
| Debian:13 | node-xmldom | 0.8.6-1 | DEBIAN-CVE-2022-39353 |
| Debian:14 | node-xmldom | 0.8.6-1 | DEBIAN-CVE-2022-39353 |
| Ubuntu:22.04:LTS | node-xmldom | 0.7.5-1ubuntu0.22.04.1 | USN-6102-1 |
| Ubuntu:22.04:LTS | node-xmldom | 0.7.5-1ubuntu0.22.04.1 | UBUNTU-CVE-2022-39353 |
| Ubuntu:25.10 | node-xmldom | no fix listed | UBUNTU-CVE-2022-39353 |
| npm | @xmldom/xmldom | 0.8.4 | GHSA-crh6-fp67-6883 |
| npm | @xmldom/xmldom | 0.7.7 | GHSA-crh6-fp67-6883 |
| npm | @xmldom/xmldom | 0.9.0-beta.4 | GHSA-crh6-fp67-6883 |
| npm | xmldom | no fix listed | GHSA-crh6-fp67-6883 |
Affected products (as reported)
Weakness: CWE-20, CWE-1288 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H