Misinterpretation of malicious XML input

Overview

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.

Workarounds

Downstream applications can validate the input and reject the maliciously crafted documents.

Recommendation

Update to 0.5.0 or later

References

• GitHub Security Advisory
• CVE
• Similar advisory for Go standard library