xmldom versions 0.4.0 and older do not correctly preserve system identifiers, FPIs or namespaces 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:
This PR contains the following updates:
0.1.31->0.5.0GitHub Vulnerability Alerts
CVE-2021-21366
Impact
xmldom versions 0.4.0 and older do not correctly preserve system identifiers, FPIs or namespaces 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:
For more information
If you have any questions or comments about this advisory:
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