Improper Authentication in DTStack Taier Source Connection Test Endpoint
CVE-2026-11618

6.9MEDIUM

Key Information:

Vendor

Dtstack

Status
Taier
Vendor
CVE Published:
9 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-11618?

A vulnerability exists in DTStack Taier, specifically in the preHandle function of the LoginInterceptor.java file found within the Source Connection Test Endpoint. This flaw allows for improper authentication, leading to potential unauthorized access. Attackers could exploit this vulnerability remotely, leveraging publicly disclosed details to manipulate authentication processes. To mitigate this risk, users are advised to apply the patch (commit f95389e7f74acec42bcee079a616aaa06f9551d2) as a preventative measure.

Affected Version(s)

Taier 1.0

Taier 1.1

Taier 1.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-11618 - Proof of Concept

References

https://vuldb.com/vuln/369299
vdb-entrytechnical-description
https://vuldb.com/vuln/369299/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-11618
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

anch0r (VulDB User)
.