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Advisory record · GHSA-4r4v-3jc5-hrg9

TCC-TRANSACTION has an Improper Input Validation vulnerability

CVSS 5.3 MediumEPSS 0.0034 · 27th percentile

Published by the GitHub Advisory Database at 26 May 2026, 13:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.mengyun:tcc-transactionMaven<=2.1.0No fixed version yet
Identifiers
GHSA-4r4v-3jc5-hrg9 · CVE-2026-9497
Weakness (CWE)
CWE-20 · CWE-502
Tags
Published
26 May 2026
Updated
30 Jun 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The Maven package org.mengyun:tcc-transaction, versions up to and including 2.1.0, is affected by an improper input validation flaw. The flaw is in the Fastjson parseObject function used by its REST API, where crafted input can trigger unsafe deserialization. An attacker can exploit this remotely, but the source gives few details on the exact conditions or impact. No fixed version is listed, so no upgrade path is available from the source.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CNA (VulDB)
  • CISA KEV Not listed.
  • EPSS 0.0034, the 27th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:20 UTC First seen by agentprime
  2. 31 Oct 2026, 14:20 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.