CVE-2026-86144: Incorrect Resource Transfer Between Spheres

In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags. This has security relevance for, for example, the XMLPARSENONET flag, if without it a custom resource loader accesses the internet and triggers XML external entity injection, SSRF, or ...