CVE-2026-40864— JupyterHub 跨站请求伪造绕过漏洞
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| jupyterhub | jupyterhub | >= 4.1.0, < 5.4.5 | affected |
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一、 漏洞 CVE-2026-40864 基础信息
漏洞信息
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Vulnerability Title
JupyterHub: Cross-origin form POSTs bypass XSRF
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
JupyterHub is software that allows users to create a multi-user server for Jupyter notebooks. In versions 4.1.0 through 5.4.4, XSRF protection (updated in 4.1.0) inappropriately treated requests with Sec-Fetch-Mode: no-cors as same-origin requests, bypassing XSRF checks. The JSON API is not affected, only HTTP form endpoints, such as /hub/spawn and /hub/accept-share, meaning attackers could trigger server spawn (but not access the server) and if the attacker is a JupyterHub user permitted to share access to their server, cause a user to accept a share and have access to the attacker's server. This issue has been fixed in version 5.4.5. If developers are unable to immediately upgrade, they can temporarily mitigate this issue by dropping requests to JupyterHub with Sec-Fetch-Mode: no-cors if they are using a reverse proxy.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
跨站请求伪造(CSRF)
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 |
|---|---|---|---|---|
| jupyterhub | jupyterhub | >= 4.1.0, < 5.4.5 | - |
二、漏洞 CVE-2026-40864 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-40864 补丁与修复 (1)
CVE-2026-40864 厂商安全公告 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-40864
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