CVE-2026-4735 PUBLISHED

A stack overflow and DoS vulnerability in DTStack/chunjun

Assigner: GovTech CSG
Reserved: 24.03.2026 Published: 24.03.2026 Updated: 24.03.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Amber
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	DTStack
Product	chunjun
Versions	Default: affected affected from 0 to 1.16.1 (excl.)

Credits

TITAN Team (titancaproject@gmail.com) reporter

References

https://github.com/DTStack/chunjun/pull/1939

Problem Types

CWE-502 Deserialization of Untrusted Data CWE