CVE-2026-23739 Asterisk xml.c uses unsafe XML_PARSE_NOENT leading to potential XXE Injection

Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, the astxmlopen function in xml.c parses XML documents using libxml with unsafe parsing options that enable entity expansion and XInclude processing...