Description
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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-hrw6-wg82-cm62
Scores
CVSS v3
7.5
EPSS
0.0151
EPSS Percentile
81.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-200
Status
published
Products (2)
jupyter/jupyter_server
< 2.14.1
pypi/jupyter_server
0 - 2.14.1PyPI
Published
Jun 06, 2024
Tracked Since
Feb 18, 2026