PT-2026-27313 · Dtstack · Chunjun

Titan Team · CVE-2026-4735 · Published 2026-03-24 · Updated 2026-04-30

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

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

Name of the Vulnerable Software and Affected Versions chunjun versions prior to 1.16.1

Description An unreliable data deserialization issue exists in DTStack chunjun, specifically within the chunjun-core/src/main/java/com/dtstack/chunjun/util modules. The problem is linked to the GsonUtil.Java program files.

Recommendations Update chunjun to version 1.16.1 or later.

Exploit

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2026-4735

Affected Products

Chunjun

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4735.json · Exploit
• https://github.com/DTStack/chunjun/pull/1939 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-4735 · Security Note
• https://osv.dev/vulnerability/CVE-2026-4735 · Vendor Advisory
• https://github.com/DTStack/chunjun · Note
• https://twitter.com/CVEarity/status/2036847967295201292 · Twitter Post
• https://t.me/cveNotify/161577 · Telegram Post