CVE-2020-26232

Open redirect in Jupyter Server

Description

Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers 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.

Category

4.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.23%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: jupyter jupyter_server
Published at:
Updated at:

References

Link Tags
https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v third party advisory
https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157 third party advisory patch
https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2020-26232?
CVE-2020-26232 has been scored as a medium severity vulnerability.
How to fix CVE-2020-26232?
To fix CVE-2020-26232, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-26232 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-26232 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-26232?
CVE-2020-26232 affects jupyter jupyter_server.
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