A vulnerability identified as critical has been detected in changmingxie tcc-transaction up to 2.1.0 . This issue affects the function Fastjson.parseObject of the component Fastjson AutoType REST API . This manipulation causes deserialization. The identification of this vulnerability is CVE-2026-9497 . It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.