CVE-2026-40110— Jupyter-server CORS验证绕过漏洞
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一、 漏洞 CVE-2026-40110 基础信息
漏洞信息
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Vulnerability Title
jupyter-server CORS origin validation bypass via unanchored regex in allow_origin_pat
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, the Origin header validation uses Python's re.match() to check incoming origins against the allow_origin_pat configuration value. Because re.match() only anchors at the start of the string and does not require a full match, a pattern intended to match only a trusted domain (e.g., trusted.example.com) will also match any origin that begins with that domain followed by additional characters (e.g., trusted.example.com.evil.com). An attacker who controls such a domain can bypass the CORS origin restriction and make cross-origin requests to the Jupyter Server API from an untrusted site. This issue has been fixed in version 2.18.0.
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
CWE-777
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 |
|---|---|---|---|---|
| jupyter-server | jupyter_server | <= 2.17.0 | - |
二、漏洞 CVE-2026-40110 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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IV. Related Vulnerabilities
V. Comments for CVE-2026-40110
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