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I. Basic Information for CVE-2026-4735
Vulnerability Information
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Vulnerability Title
A stack overflow and DoS vulnerability in DTStack/chunjun
Source: NVD (National Vulnerability Database)
Vulnerability Description
Deserialization of Untrusted Data vulnerability in DTStack chunjun (‎chunjun-core/src/main/java/com/dtstack/chunjun/util modules). This vulnerability is associated with program files GsonUtil.Java. This issue affects chunjun: before 1.16.1.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
ChunJun 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ChunJun是袋鼠云开源的一个基于Flink的异构数据源同步与计算框架。 ChunJun 1.16.1之前版本存在安全漏洞，该漏洞源于反序列化不可信数据，可能导致程序文件GsonUtil.Java出现问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
DTStackchunjun 0 ~ 1.16.1 -
II. Public POCs for CVE-2026-4735
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III. Intelligence Information for CVE-2026-4735
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IV. Related Vulnerabilities
Same weakness: CWE-502
V. Comments for CVE-2026-4735

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