A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function
xmlParseSGMLCatalog of the component xmlcatalog. The manipulation leads to uncontrolled recursion.
This vulnerability was named CVE-2025-8732. Attacking locally is a requirement. Furthermore, there is an exploit available.
The real existence of this vulnerability is still doubted at the moment.
The code maintainer explains, that “[t]he issue can only be triggered with untrusted SGML catalogs and it makes absolutely no sense to use untrusted catalogs. I also doubt that anyone is still using SGML catalogs at all.”
