Read the docs
TI-2022-06073 Aliases CVE-2022-21697GHSA-gcv9-6737-pjqw

SSRF vulnerability (requires authentication)

Priority LOW 33CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01096 65th percentileScored 2026-11-07
Fix Fixed jupyter-server-proxy (jupyterhub): 3.2.1jupyter-server-proxy (PyPI): 3.2.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
jupyterhubjupyter-server-proxybefore 3.2.13.2.1Patch availableCNA
—jupyter-server-proxy (PyPI)before 3.2.13.2.1Patch availableGHSA-gcv9-6737-pjqw
  • jupyter-server-proxy Vendorjupyterhub Affected before 3.2.1 Fixed in 3.2.1 Patch available CNA
  • jupyter-server-proxy (PyPI) Vendor— Affected before 3.2.1 Fixed in 3.2.1 Patch available GHSA-gcv9-6737-pjqw

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jupyter:jupyter_server_proxy:*:*:*:*:*:*:*:*before 3.2.1Vulnerablejupyterlab
  • cpe:2.3:a:jupyter:jupyter_server_proxy:*:*:*:*:*:*:*:* Versions before 3.2.1 Vulnerable ·jupyterlab

Remediation

  • Fix · CNA jupyter-server-proxy (jupyterhub) Fixed in 3.2.1
  • Fix · GHSA-gcv9-6737-pjqw jupyter-server-proxy (PyPI) Fixed in 3.2.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-21697
  2. 2026-10-03 Alias added: GHSA-gcv9-6737-pjqw

References

Patch 2

Advisory 2

Other 2

  • TI-2025-23499 Jupyter Remote Desktop Proxy makes TigerVNC accessible via the network and not just via a UNIX socket as intended CVSS 4.0CRITICAL 9.0
  • TI-2023-10877 JupyterHub's LTI13Authenticator: JWT signature not validated CVSS 3.1CRITICAL 10.0
  • TI-2021-16545 Remote code execution in Binderhub CVSS 3.1CRITICAL 9.8
  • TI-2021-18033 Improper Access Control in jupyterhub-firstuseauthenticator CVSS 3.1CRITICAL 9.8
  • TI-2021-16546 Code injection in nbgitpuller CVSS 3.1CRITICAL 9.6
  • TI-2024-18755 Jupyter Server Proxy's Websocket Proxying does not require authentication CVSS 3.1CRITICAL 9.8
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences