DTStack Taier 1.4.0 Upload Controller UploadController.java MultipartFile.getOriginalFilename File path traversal

Summaryinfo

A vulnerability, which was classified as critical, was found in DTStack Taier 1.4.0. Affected by this vulnerability is the function MultipartFile.getOriginalFilename of the file UploadController.java of the component Upload Controller. The manipulation of the argument File results in path traversal. This vulnerability is cataloged as CVE-2026-19761. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in DTStack Taier 1.4.0. Affected is the function MultipartFile.getOriginalFilename of the file UploadController.java of the component Upload Controller. The manipulation of the argument file with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-19761. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are needed for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading to version 1.5.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 572773c4315e23e51e30115151cb091749a8d03e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• DTStack

Name

• Taier

Version

• 1.4.0

License

• open-source

Website

• Product: https://github.com/DTStack/Taier/

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Submitinfo

Accepted

• Submit #868965: DTStack taier v1.4.0 Path Traversal (by Ku4D3)

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