CVE-2019-10255: Notebook Open Redirect Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-rv62-4pmj-xw6h
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CVSS 6.1
CWE-601
Published
Advisory Summary

CVE-2019-10255 is a MODERATE (CVSS 6.1) open redirect vulnerability vulnerability (CWE-601: URL Redirection to Untrusted Site ('Open Redirect')) affecting Notebook libraries in the PyPI ecosystem. The issue involves open redirect vulnerability in jupyterhub and notebook. Remediation is available by upgrading affected packages to version 5.7.8, 0.9.6.

CVE-2019-10255 at a Glance

CVE Identifier CVE-2019-10255
GHSA Identifier GHSA-rv62-4pmj-xw6h
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Affected Product Notebook
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2019-10255

To remediate this vulnerability, upgrade all affected Notebook dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

notebook fixed: 5.7.8 
pip install notebook>=5.7.8
jupyterhub fixed: 0.9.6 
pip install jupyterhub>=0.9.6
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show notebook

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2019-10255, inspect your installed packages using pip:

pip show notebook

Analyze the terminal output to locate any version of Notebook in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.7.8), your application is affected.

Note: The pip show notebook command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect'), where the web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. In Notebook, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An Open Redirect vulnerability for all browsers in Jupyter Notebook before 5.7.8 and some browsers (Chrome, Firefox) in JupyterHub before 0.9.6 allows crafted links to the login page, which will redirect to a malicious site after successful login. Servers running on a base_url prefix are not affected.

CVE-2019-10255 Affected Notebook Versions

2 component(s)
Fixed Versions:
5.7.80.9.6
Product / Package Ecosystem Affected Versions Fixed Version
notebook
pypi/notebook
PyPI
< 5.7.8
5.7.8
jupyterhub
pypi/jupyterhub
PyPI
< 0.9.6
0.9.6

References

NVD — CVE-2019-10255 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10255
Security Fix Commit FIX COMMIT
https://github.com/jupyter/notebook/commit/08c4c898182edbe97aadef1815cce50448f975cb
Security Fix Commit FIX COMMIT
https://github.com/jupyter/notebook/commit/70fe9f0ddb3023162ece21fbb77d5564306b913b
Security Fix Commit FIX COMMIT
https://github.com/jupyter/notebook/commit/d65328d4841892b412aef9015165db1eb029a8ed
blog.jupyter.org/open-redirect-vulne... WEB
https://blog.jupyter.org/open-redirect-vulnerability-in-jupyter-jupyterhub-adf43583f1e4
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-rv62-4pmj-xw6h
Notebook Source Repository REPOSITORY
https://github.com/jupyter/notebook
Notebook Source Repository REPOSITORY
https://github.com/jupyter/notebook/compare/05aa4b2...16cf97c
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UP5RLEES2JBBNSNLBR65XM6PCD4EMF7D
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VMDPJBVXOVO6LYGAT46VZNHH6JKSCURO

Frequently Asked Questions

What is CVE-2019-10255?
CVE-2019-10255 is a security vulnerability in Notebook involving Open Redirect vulnerability in jupyterhub and notebook under CWE-601: URL Redirection to Untrusted Site ('Open Redirect').
Which Notebook versions are affected?
Affected versions include releases prior to 5.7.8, 0.9.6 across affected packages: notebook, jupyterhub.
What version fixes CVE-2019-10255?
Upgrading to 5.7.8, 0.9.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is notebook affected?
Yes, notebook is affected in releases prior to 5.7.8. Upgrade your dependency to 5.7.8 or later.
Is jupyterhub affected?
Yes, jupyterhub is affected in releases prior to 0.9.6. Upgrade your dependency to 0.9.6 or later.
What is the CVSS score of CVE-2019-10255?
CVE-2019-10255 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2019-10255?
CVE-2019-10255 is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect') (The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.).
How can I check PyPI dependencies for CVE-2019-10255?
Run the dependency tree command: 'pip show notebook'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-rv62-4pmj-xw6h",
  "modified" : "2023-09-05T12:34:54Z",
  "published" : "2019-04-02T15:46:54Z",
  "aliases" : [ "CVE-2019-10255" ],
  "summary" : "Open Redirect vulnerability in jupyterhub and notebook",
  "details" : "An Open Redirect vulnerability for all browsers in Jupyter Notebook before 5.7.8 and some browsers (Chrome, Firefox) in JupyterHub before 0.9.6 allows crafted links to the login page, which will redirect to a malicious site after successful login. Servers running on a base_url prefix are not affected.",
  "severity" : [ {
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  } ],
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    },
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      }, {
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      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
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  }, {
    "type" : "WEB",
    "url" : "https://github.com/jupyter/notebook/commit/08c4c898182edbe97aadef1815cce50448f975cb"
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    "type" : "WEB",
    "url" : "https://github.com/jupyter/notebook/commit/70fe9f0ddb3023162ece21fbb77d5564306b913b"
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    "url" : "https://blog.jupyter.org/open-redirect-vulnerability-in-jupyter-jupyterhub-adf43583f1e4"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-rv62-4pmj-xw6h"
  }, {
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  }, {
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    "url" : "https://github.com/jupyter/notebook/compare/05aa4b2...16cf97c"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UP5RLEES2JBBNSNLBR65XM6PCD4EMF7D"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VMDPJBVXOVO6LYGAT46VZNHH6JKSCURO"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-601" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:55:52Z",
    "nvd_published_at" : null
  }
}