StringEqual in TiXmlDeclaration::Parse in tinyxmlparser.cpp in TinyXML through 2.6.2 has a reachable assertion (and application exit) via a crafted XML document with a '\0' located after whitespace.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-34194.json"
[ { "events": [ { "introduced": "0" }, { "last_affected": "2.6.2" } ] } ]