GHSA-h6q6-9hqw-rwfv
Misinterpretation of malicious XML input
Quick fix
GHSA-h6q6-9hqw-rwfv — xmldom: upgrade to the fixed version with the command below.
npm install xmldom@0.5.0Details
### Impact
xmldom versions 0.4.0 and older do not correctly preserve [system identifiers](https://www.w3.org/TR/2008/REC-xml-20081126/#d0e4313), [FPIs](https://en.wikipedia.org/wiki/Formal_Public_Identifier) or [namespaces](https://www.w3.org/TR/xml-names11/) when repeatedly parsing and serializing maliciously crafted documents.
This may lead to unexpected syntactic changes during XML processing in some downstream applications.
### Patches
Update to 0.5.0 (once it is released)
### Workarounds
Downstream applications can validate the input and reject the maliciously crafted documents.
### References
Similar to this one reported on the Go standard library:
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [`xmldom/xmldom`](https://github.com/xmldom/xmldom) * Email us: send an email to **all** addresses that are shown by `npm owner ls xmldom`
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://github.com/xmldom/xmldom/security/advisories/GHSA-h6q6-9hqw-rwfv[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2021-21366[ADVISORY]
- https://github.com/xmldom/xmldom/commit/d4201b9dfbf760049f457f9f08a3888d48835135[WEB]
- https://github.com/xmldom/xmldom[PACKAGE]
- https://github.com/xmldom/xmldom/releases/tag/0.5.0[WEB]
- https://lists.debian.org/debian-lts-announce/2023/01/msg00000.html[WEB]
- https://www.npmjs.com/package/xmldom[WEB]