CVE-2022-21697 - CVE House

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Status published Medium CVE-2022-21697

SSRF vulnerability (requires authentication)

6.3 CVSS

Vulnerability Description

Jupyter Server Proxy is a Jupyter notebook server extension to proxy web services. Versions of Jupyter Server Proxy prior to 3.2.1 are vulnerable to Server-Side Request Forgery (SSRF). Any user deploying Jupyter Server or Notebook with jupyter-proxy-server extension enabled is affected. A lack of input validation allows authenticated clients to proxy requests to other hosts, bypassing the `allowed_hosts` check. Because authentication is required, which already grants permissions to make the same requests via kernel or terminal execution, this is considered low to moderate severity. Users may upgrade to version 3.2.1 to receive a patch or, as a workaround, install the patch manually.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Globus `identity_provider` restriction ignored when used with `allow_all` in JupyterHub 5.0

Jupyter Server Proxy has a reflected XSS issue in host parameter

GoogleOAuthenticator.hosted_domain incorrectly verifies membership of an Google organization/workspace

Affected Vendor

jupyterhub

View all reports →

Affected Software

jupyter-server-proxy

Vulnerable Versions:

< 3.2.1

Timeline

Official Publish: January 25th, 2022

Last Modified: April 23rd, 2025

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1213 Data from Information Repositories

T1005 Data from Local System

T1046 Network Service Discovery