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CVE-2026-19761— DTStack Taier Upload Controller UploadController.java MultipartFile.getOriginalFilename path traversal

Quick assessment

Affected

DTStack Taier

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

DTStack Taier是中国DTStack公司的一个大数据处理平台。 DTStack Taier 1.4.0版本存在路径遍历漏洞，该漏洞源于UploadController.java文件中MultipartFile.getOriginalFilename函数对File参数处理不当，可能导致路径遍历攻击。

CVSS 4.7 · Medium EPSS 0.51% · P42 Updated Aug 14, 2026

Possible ATT&CK Techniques 1 AI

T1195.002 · Compromise Software Supply Chain

Affected Version Matrix 2

Vendor	Product	Version Range	Status
DTStack	Taier	`1.4.0`	affected
		`1.5.0`	unaffected

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I. Basic Information for CVE-2026-19761

Vulnerability Information

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Vulnerability Title

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

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability 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 leads to path traversal. The attack may be initiated remotely. Upgrading to version 1.5.0 is able to address this issue. The identifier of the patch is 572773c4315e23e51e30115151cb091749a8d03e. It is advisable to upgrade the affected component.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Source: CVE Program / CVE List V5

Vulnerability Type

对路径名的限制不恰当(路径遍历)

Source: CVE Program / CVE List V5

Vulnerability Title

DTStack Taier 路径遍历漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
DTStack	Taier	1.4.0	`cpe:2.3:a:dtstack:taier::::::::`

II. Public POCs for CVE-2026-19761

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-19761

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Patches & Fixes for CVE-2026-19761 (1)

🔗 [feat-1202][taier-data-develop] check with upLoadController getResour… · DTStack/Taier@572773c · GitHub Read full article patch

Vendor Advisories for CVE-2026-19761 (2)

🔗 Arbitrary file write via unsanitized upload filename (path traversal) · Issue #1202 · DTStack/Taier Read full article issue-tracking
CVE-2026-19761 DTStack Taier Upload Controller UploadController.java MultipartFile.getOriginalFilename path traversal vdb-entry technical-description

Vendor Pages for CVE-2026-19761 (2)

Other References for CVE-2026-19761 (2)

CVE-2026-19761 in Taier third-party-advisory
Submit #868965: DTStack taier v1.4.0 Path Traversal third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-19761

IV. Related Vulnerabilities

Same product: Taier

Same vendor: DTStack

Same weakness: CWE-22