Vulnerability · Published May 25, 2026 · Assigned by VulDB

CVE-2026-9497changmingxie tcc-transaction Fastjson AutoType REST API Fastjson.parseObject deserialization

Medium 6.3

In plain English

A medium-severity unsafe deserialization in tcc-transaction from changmingxie. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.3%top 72.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A flaw has been found 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. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	org.mengyun:tcc-transaction	no fix listed	GHSA-4r4v-3jc5-hrg9

Affected products (as reported)

Vendor	Product	Versions
changmingxie	tcc-transaction	2.02.1.0

Weakness: CWE-502, CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-365480 | changmingxie tcc-transaction Fastjson AutoType REST API Fastjson.parseObject deserialization vdb-entry, technical-description
VDB-365480 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #814092 | changmingxie tcc-transaction <=2.1.0 Deserialization third-party-advisory
https://github.com/Ku4D3/bug_story/blob/main/report_01.md related