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URL Redirection to Untrusted Site ('Open Redirect')


Severity Medium
Score 6.1/10


The jupyter-server is the backend for Jupyter web applications. An open redirect vulnerability in versions prior to 2.7.2, maliciously crafted login links to known Jupyter Servers can cause a successful login or an already logged-in session to be redirected to arbitrary sites, which should be restricted to Jupyter Server-served URLs.

  • LOW
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  • NONE
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CWE-601 - Open Redirect

An open redirect attack employs a URL parameter, HTML refresh tags, or a DOM based location change to exploit the trust of a vulnerable domain to direct the users to a malicious website. The attack could lead to higher severity vulnerabilities such as unauthorized access control, account takeover, XSS, and more.


Advisory Timeline

  • Published