Description
The Jupyter Server provides the backend (i.e. the core services, APIs, and REST endpoints) for Jupyter web applications like Jupyter notebook, JupyterLab, and Voila. In Jupyter Server before version 1.1.1, an open redirect vulnerability could cause the jupyter server to redirect the browser to a different malicious website. All jupyter servers running without a base_url prefix are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may *appear* safe, but ultimately redirect to a spoofed server on the public internet. This same vulnerability was patched in upstream notebook v5.7.8. This is fixed in jupyter_server 1.1.1. If upgrade is not available, a workaround can be to run your server on a url prefix: "jupyter server --ServerApp.base_url=/jupyter/".
Published: 2020-12-21
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-0091 The Jupyter Server provides the backend (i.e. the core services, APIs, and REST endpoints) for Jupyter web applications like Jupyter notebook, JupyterLab, and Voila. In Jupyter Server before version 1.1.1, an open redirect vulnerability could cause the jupyter server to redirect the browser to a different malicious website. All jupyter servers running without a base_url prefix are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may *appear* safe, but ultimately redirect to a spoofed server on the public internet. This same vulnerability was patched in upstream notebook v5.7.8. This is fixed in jupyter_server 1.1.1. If upgrade is not available, a workaround can be to run your server on a url prefix: \"jupyter server --ServerApp.base_url=/jupyter/\".
Github GHSA Github GHSA GHSA-9f66-54xg-pc2c Jupyter Server open redirect vulnerability
History

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Subscriptions

Jupyter Jupyter Server
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-04T15:56:04.089Z

Reserved: 2020-10-01T00:00:00.000Z

Link: CVE-2020-26275

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-12-21T18:15:15.353

Modified: 2024-11-21T05:19:43.843

Link: CVE-2020-26275

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses