Medium severity · published Apr 4, 2019
CVE-2019-10856
In Jupyter Notebook before 5.7.8, an open redirect can occur via an empty netloc
6.1
CVSS
1.3%
EPSS
No
On KEV
Description
In Jupyter Notebook before 5.7.8, an open redirect can occur via an empty netloc. This issue exists because of an incomplete fix for CVE-2019-10255.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
Notebook · Jupyter
before 5.7.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10856
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-10856
Exploit
https://blog.jupyter.org/open-redirect-vulnerability-in-jupyter-jupyterhub-adf43583f1e4
Patch
https://github.com/jupyter/notebook/compare/16cf97c...b8e30ea
More from Notebook
9.6
CVE-2026-42557
jupyterlab: Command linker attributes in HTML enable one-click command execution from untrusted content
9.6
CVE-2021-32798
The Jupyter notebook is a web-based notebook environment for interactive computing
8.4
CVE-2026-40171
Jupyter Notebook and JupyterLab token theft via stored XSS in help command linker
7.8
CVE-2018-8768
In Jupyter Notebook before 5.4.1, a maliciously forged notebook file can bypass sanitization to execute JavaScript in the notebook context
7.5
CVE-2022-24758
The Jupyter notebook is a web-based notebook environment for interactive computing
