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CVE-2026-80104— DB-GPT 0.8.0 Path Traversal Arbitrary File Write via Skill Upload Filename

Quick assessment

Affected
eosphoros-ai DB-GPT
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.

DB-GPT 在构建上传技能的目的地路径时，直接使用 multipart 表单中的文件名，而未对其限制在上传目录内。 端点位于 ，该函数将请求中传来的 原样使用，并将请求体写入 。由于 这一路径拼接操作在右侧操作数为绝对路径时会丢弃左侧操作数，或在包含父目录引用（如 ）时允许跳出预期目录，因此类似 或 的文件名可导致写入位置脱离预期的上传根目录。该过程未对最终路径进行规范化处理，未验证其是否仍位于上传根目录下，也未阻止 后缀的使用。 该路由的唯一依赖是 中的 函数，无论是否提供 请求头，该函数都会返回一个具有管理员

CVSS 9.8 · Critical EPSS 0.71% · P51
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I. Basic Information for CVE-2026-80104

Vulnerability Information
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Vulnerability Title
DB-GPT 0.8.0 Path Traversal Arbitrary File Write via Skill Upload Filename
Source: CVE Program / CVE List V5
Vulnerability Description
DB-GPT builds the destination path for an uploaded skill from the multipart filename without constraining it to the upload directory. skill_upload in packages/dbgpt-app/src/dbgpt_app/openapi/api_v1/agentic_data_api.py takes file.filename as given and writes the request body to upload_dir / filename. A path composed with that operator discards the left operand when the right one is absolute and follows parent references otherwise, so a filename such as ../../../tmp/x or /tmp/x resolves outside the intended directory; nothing canonicalises the result, checks that it remains under the upload root, or prevents a .py suffix. The route's only dependency is get_user_from_headers in dbgpt_serve/utils/auth.py, which returns a request carrying the admin role whether or not a user_id header is supplied, so the endpoint is reachable without credentials. A remote attacker holding no account can therefore write attacker-controlled bytes to any path the server process can write, place a new Python module inside the application package or replace one the application already imports, and obtain code execution in the server process when that module is next imported.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
eosphoros-ai DB-GPT 0.8.0 ~ 0.8.1 -

II. Public POCs for CVE-2026-80104

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III. Intelligence Information for CVE-2026-80104

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Vendor Advisories for CVE-2026-80104 (1)

Vendor Pages for CVE-2026-80104 (1)

IV. Related Vulnerabilities

Same product: DB-GPT
Same vendor: eosphoros-ai
Same weakness: CWE-22

V. Comments for CVE-2026-80104

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