| Title | DTStack Taier <=1.0.0 Code Injection |
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| Description | A vulnerability was found in DTStack Taier up to 1.0.0. It has been classified as critical. Affected is the function preHandle of the file taier-data-develop/src/main/java/com/dtstack/taier/develop/interceptor/LoginInterceptor.java. The LoginInterceptor only checks whether the authentication token cookie is blank without verifying its signature or validity. This allows an unauthenticated attacker to bypass authentication by setting any non-empty token cookie value. Combined with a JDBC URL injection in the data source connection test endpoint (ConnFactory.java) and an outdated PostgreSQL JDBC driver (42.2.2, CVE-2022-21724 unfixed), a remote attacker can execute arbitrary commands on the server as root without any credentials. The attack can be initiated remotely.
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| Source | ⚠️ https://github.com/DTStack/Taier/issues/1194 |
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| User | anch0r (UID 96691) |
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| Submission | 05/20/2026 10:54 (2 months ago) |
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| Moderation | 06/08/2026 22:09 (19 days later) |
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| Status | Accepted |
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| VulDB entry | 369299 [DTStack Taier up to 1.4.0 Source Connection Test Endpoint LoginInterceptor.java preHandle improper authentication] |
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| Points | 20 |
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