CVE-2026-7847— Langchain-Chatchat 上传文件ID随机值漏洞
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一、 漏洞 CVE-2026-7847 基础信息
漏洞信息
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Vulnerability Title
chatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random values
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
A vulnerability was found in chatchat-space Langchain-Chatchat up to 0.3.1.3. The affected element is the function _get_file_id of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Uploaded File Handler. Performing a manipulation results in insufficiently random values. Access to the local network is required for this attack. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
使用不充分的随机数
来源: 美国国家漏洞数据库 NVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| chatchat-space | Langchain-Chatchat | 0.3.1.0 | - |
二、漏洞 CVE-2026-7847 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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- Just a moment...third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-7847
同批安全公告 · chatchat-space · 2026-05-05 · 共 4 条
| CVE-2026-7844 | 6.3 MEDIUM | Langchain-Chatchat delete_file 缺少认证漏洞 |
| CVE-2026-7846 | 2.6 LOW | Langchain-Chatchat openai_routes.py 文件竞态条件漏洞 |
| CVE-2026-7845 | 2.6 LOW | Langchain-Chatchat 视觉聊天图片粘贴图像弱哈希漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-7847
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