CVE-2024-28757

Name of the Vulnerable Software and Affected Versions libexpat versions 2.6.1 and earlier libexpat through 2.6.1

Description The issue is related to the improper handling of XML external entity (XXE) declarations by the XML ExternalEntityParserCreate function, allowing an XML Entity Expansion attack. This can be exploited by a remote attacker to obtain sensitive information or cause a denial of service by sending specially crafted XML content. The estimated number of potentially affected devices is not specified.

Recommendations For libexpat versions 2.6.1 and earlier, update to version 2.6.2 or later to resolve the issue. As a temporary workaround, consider disabling the use of external parsers created via XML ExternalEntityParserCreate until a patch is available. Restrict access to sensitive information and minimize the risk of exploitation by limiting the use of libexpat in sensitive environments.