Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-5422— Path Traversal in jupyter/jupyter

Quick assessment

Affected
jupyter jupyter/jupyter
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.

Jupyter Server是Jupyter组织的一款用于为Jupyter Web应用提供后端服务的应用软件。 Jupyter Server 2.17.0版本存在安全漏洞，该漏洞源于_get_os_path函数中根目录边界检查不正确，可能导致未经授权的读写访问。

AI Predicted 7.5 Difficulty: Easy EPSS 0.55% · P44

Affected Version Matrix 1

VendorProduct Version RangeStatus
jupyter jupyter/jupyter unspecified≤ latest affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-5422

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Path Traversal in jupyter/jupyter
Source: CVE Program / CVE List V5
Vulnerability Description
A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the _get_os_path() function within jupyter_server/services/contents/fileio.py. The check uses startswith(root) without appending a trailing path separator, allowing sibling directories with names starting with the same prefix as root_dir to bypass the check. Additionally, the to_os_path() function in utils.py does not strip ".." from path parts, enabling traversal sequences to bypass the vulnerable check. This vulnerability can lead to unauthorized read/write access to files in sibling directories, potentially exposing sensitive data in shared hosting environments.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
相对路径遍历
Source: CVE Program / CVE List V5
Vulnerability Title
Jupyter Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jupyter Server是Jupyter组织的一款用于为Jupyter Web应用提供后端服务的应用软件。 Jupyter Server 2.17.0版本存在安全漏洞，该漏洞源于_get_os_path函数中根目录边界检查不正确，可能导致未经授权的读写访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
jupyter jupyter/jupyter unspecified ~ latest -

II. Public POCs for CVE-2026-5422

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-5422

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-5422 (1)

IV. Related Vulnerabilities

Same product: jupyter/jupyter
Same vendor: jupyter
Same weakness: CWE-23

V. Comments for CVE-2026-5422

No comments yet

Leave a comment