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  5. CVE-2020-26250

CVE-2020-26250: Incorrect Authorization

December 1, 2020 (updated October 1, 2024)

In oauthenticator, the deprecated (in jupyterhub ) configuration Authenticator.whitelist, which should be transparently mapped to Authenticator.allowed_users with a warning, is instead ignored by OAuthenticator classes, resulting in the same behavior as if this configuration has not been set.

References

  • github.com/advisories/GHSA-384w-5v3f-q499
  • github.com/jupyterhub/oauthenticator
  • github.com/jupyterhub/oauthenticator/blob/master/docs/source/changelog.md
  • github.com/jupyterhub/oauthenticator/commit/a4aac191c16cf6281f3d346615aefa75702b02d7
  • github.com/jupyterhub/oauthenticator/security/advisories/GHSA-384w-5v3f-q499
  • github.com/pypa/advisory-database/tree/main/vulns/oauthenticator/PYSEC-2020-68.yaml
  • jupyterhub.readthedocs.io/en/1.2.2/getting-started/authenticators-users-basics.html
  • nvd.nist.gov/vuln/detail/CVE-2020-26250

Code Behaviors & Features

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Affected versions

All versions starting from 0.12.0 before 0.12.2

Fixed versions

  • 0.12.2

Solution

Upgrade to version 0.12.2 or above.

Impact 6.3 MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-863: Incorrect Authorization

Source file

pypi/oauthenticator/CVE-2020-26250.yml

Spotted a mistake? Edit the file on GitLab.

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