CVE-2026-89425

A flaw was found in FasterXML jackson-core. This vulnerability allows a remote attacker to cause a Denial of Service DoS by providing a specially crafted, malformed token to the JsonFactory.createParserDataInput method. The UTF8DataInputJsonParser component, responsible for handling DataInput...

CVE-2026-89425

UTF8DataInputJsonParser.reportInvalidToken in FasterXML jackson-core builds the offending-token text for its error message by appending Java identifier characters to a StringBuilder in a loop that has no upper bound. Unlike the three sibling parser implementations, including UTF8StreamJsonParser,...