Parsing specially crafted Mixed Content while parsing XML data may lead to invalid data structure being created, as errors were not propagated. This could lead to several NULL Pointer Dereference when post-validating documents parsed in recovery mode. https://gitlab.gnome.org/GNOME/libxml2/-/commit/babe75030c7f64a37826bb3342317134568bef61 CREATE(Triage):(User=admin) CVE-2021-3537 (https://nvd.nist.gov/vuln/detail/CVE-2021-3537)
