# CVE-2024-35178: Jupyter server on Windows discloses Windows user password hash

Source: https://junglewise.ai/threats/cve-2024-35178-jupyter-server-on-windows-discloses-windows-user-password-hash  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-06-06  
License: CC BY 4.0 with a link back

CVE-2024-35178 · Severity: low · CVSS 3.1 · Published 2024-06-06

The Jupyter Server provides the backend for Jupyter web applications. Jupyter Server on Windows has a vulnerability that lets unauthenticated attackers leak the NTLMv2 password hash of the Windows user running the Jupyter server. An attacker can crack this password to gain access to the Windows machine hosting the Jupyter server, or access other network-accessible machines or 3rd party services using that credential. Or an attacker perform an NTLM relay attack without cracking the credential to gain access to other network-accessible machines. This vulnerability is fixed in 2.14.1.

Technologies: [jupyter-server (PyPI)](https://junglewise.ai/threats/technologies/pypi-jupyter-server). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2024-35178 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-35178 being exploited in the wild.

**How severe is CVE-2024-35178?** Low severity, with a CVSS score of 3.1, published 6 June 2024.

**Which products and versions are affected?** jupyter-server (PyPI) ECOSYSTEM:introduced=0,fixed=2.14.1, GIT:introduced=0,fixed=79fbf801c5908f4d1d9bc90004b74cfaaeeed2df|ECOSYSTEM:introduced=0,fixed=2.14.1.

**Is there a fix for CVE-2024-35178?** Yes. jupyter-server (PyPI): upgrade to 2.14.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-35178?** Check whether you run jupyter-server (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- jupyter-server (PyPI): upgrade to 2.14.1 or later

  ```sh
  pip install "jupyter-server>=2.14.1"
  ```


## Affected products

- jupyter-server (PyPI) ECOSYSTEM:introduced=0,fixed=2.14.1, GIT:introduced=0,fixed=79fbf801c5908f4d1d9bc90004b74cfaaeeed2df|ECOSYSTEM:introduced=0,fixed=2.14.1

## Identifiers

- CVE-2024-35178
- GHSA-hrw6-wg82-cm62
- PYSEC-2024-165

## Related threats

- [Jupyter Server authorization bypass in kernel gateway handlers](https://junglewise.ai/threats/cve-2026-114135-jupyter-server-is-the-backend-for-jupyter-web-applications-from)
- [Jupyter Server token leakage in 5xx error logs](https://junglewise.ai/threats/cve-2026-86049-jupyter-server-token-leakage-in-5xx-error-logs)
- [Jupyter Server stored XSS in nbconvert handlers](https://junglewise.ai/threats/cve-2026-44727-jupyter-server-stored-xss-in-nbconvert-handlers)
- [Jupyter Jupyter Server CORS bypass via improper origin validation](https://junglewise.ai/threats/cve-2026-6657-jupyter-jupyter-server-cors-bypass-via-improper-origin-validation)
- [Jupyter jupyter-server path traversal in _get_os_path](https://junglewise.ai/threats/cve-2026-5422-jupyter-jupyter-server-path-traversal-in-get-os-path)