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CVE-2025-32428 — Vulnerability in jupyter-remote-desktop-proxy —...

CRITICAL

TigerVNC accessible via the network and not just via a UNIX socket as intended

Published June 29, 2026Updated July 1, 2026Source: osv

Summary

## Summary `jupyter-remote-desktop-proxy` was meant to rely on UNIX sockets readable only by the current user since version 3.0.0, but when used with TigerVNC, the VNC server started by `jupyter-remote-desktop-proxy` were still accessible via the network. This vulnerability does not affect users having TurboVNC as the `vncserver` executable. ## Credits This vulnerability was identified by Arne Gottwald at University of Göttingen and analyzed, reported, and reviewed by @frejanordsiek.

Advisory Timeline

  • First published June 29, 2026 (105 days ago).
  • Last revised July 1, 2026 — 2 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update jupyter-remote-desktop-proxy to 3.0.1 or later
pip install "jupyter-remote-desktop-proxy>=3.0.1"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
jupyter-remote-desktop-proxy
pypi
3.0.03.0.1

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.2 score means for each attack dimension.

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Frequently Asked Questions

What is CVE-2025-32428?
TigerVNC accessible via the network and not just via a UNIX socket as intended This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.2/10).
How do I check if my project is affected by CVE-2025-32428?
CVE-2025-32428 affects jupyter-remote-desktop-proxy. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-32428 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.2

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

PYSEC-2026-365
GHSA-vrq4-9hc3-cgp7

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