Vulnerability · Published Jun 9, 2026 · Assigned by VulDB

CVE-2026-11618DTStack Taier Source Connection Test Endpoint LoginInterceptor.java preHandle improper authentication

High 7.3

In plain English

A high-severity improper authentication in Taier from DTStack. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.4%top 65.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was determined in DTStack Taier up to 1.4.0. The affected element is the function preHandle of the file taier-data-develop/src/main/java/com/dtstack/taier/develop/interceptor/LoginInterceptor.java of the component Source Connection Test Endpoint. Executing a manipulation can lead to improper authentication. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. This patch is called f95389e7f74acec42bcee079a616aaa06f9551d2. A patch should be applied to remediate this issue.

Affected products (as reported)

Vendor	Product	Versions
DTStack	Taier	1.01.11.21.31.4.0

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

References

VDB-369299 | DTStack Taier Source Connection Test Endpoint LoginInterceptor.java preHandle improper authentication vdb-entry, technical-description
VDB-369299 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-11618 | CVE Analysis and Report third-party-advisory
Submit #834008 | DTStack Taier <=1.0.0 Code Injection third-party-advisory
https://github.com/DTStack/Taier/issues/1194 exploit, issue-tracking
https://github.com/DTStack/Taier/commit/f95389e7f74acec42bcee079a616aaa06f9551d2 patch
https://github.com/DTStack/Taier/ product