CVE-2026-73416— JupyterLab PyPI扩展包名规范化绕过漏洞
可能的 ATT&CK 技术 1AI
T1587.001 · Malware影响版本矩阵 2
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| jupyterlab | jupyterlab | >= 4.5.0, < 4.5.10 | affected |
>= 4.6.0, < 4.6.2 | affected |
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一、 漏洞 CVE-2026-73416 基础信息
漏洞信息
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Vulnerability Title
jupyterlab: PyPI extension blocklist package-name canonicalization bypass
来源: CVE Program / CVE List V5
Vulnerability Description
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.0 until 4.5.10 and 4.6.2, in jupyterlab/extensions/manager.py and jupyterlab/extensions/pypi.py, JupyterLab's PyPI extension manager enforces blocked_extensions_uris by comparing requested install names to blocklist entries with custom normalization that is weaker than PyPI package-name canonicalization. An authenticated user can request a PyPI-equivalent spelling such as JupyterLab.Git for a blocklisted package such as jupyterlab-git, and JupyterLab accepts the install request even though pip resolves the variant to the same package. Security impact requires an allowlist or blocklist intended to restrict package installation, the PyPI Extension Manager, and kernels and terminals that are disabled or delegated to remote hosts. The bypass lets an authenticated user install a prohibited extension, defeat integrity restrictions, and affect availability without gaining new read access. This issue is fixed in versions 4.5.10 and 4.6.2.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
大小写敏感处理不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| jupyterlab | jupyterlab | >= 4.5.0, < 4.5.10 | - |
二、漏洞 CVE-2026-73416 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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未找到公开 POC。
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CVE-2026-73416 补丁与修复 (5)
CVE-2026-73416 厂商安全公告 (1)
CVE-2026-73416 厂商页面 (2)
- 🔗 Release v4.7.0a1 · jupyterlab/jupyterlab · GitHubx_refsource_MISC
同批安全公告 · jupyterlab · 2026-08-13 · 共 4 条
| CVE-2026-73417 | 8.6 HIGH | JupyterLab 跨站脚本漏洞（`overrides.json`） |
| CVE-2026-73627 | 6.0 MEDIUM | JupyterLab 4.6.0 插件管理器锁定规则绕过漏洞 |
| CVE-2026-73626 | JupyterLab 4.6.2 之前版本认证绕过漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-73416
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