{"cve":"CVE-2018-7206","nvd":{"published":"2018-02-18T03:29:00.353","modified":"2026-06-17T02:02:47.780","status":"Modified","description":"An issue was discovered in Project Jupyter JupyterHub OAuthenticator 0.6.x before 0.6.2 and 0.7.x before 0.7.3. When using JupyterHub with GitLab group whitelisting for access control, group membership was not checked correctly, allowing members not in the whitelisted groups to create accounts on the Hub. (Users were not allowed to access other users' accounts, but could create their own accounts on the Hub linked to their GitLab account. GitLab authentication not using gitlab_group_whitelist is unaffected. No other Authenticators are affected.)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":[],"references":["https://blog.jupyter.org/security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76","https://github.com/jupyterhub/oauthenticator/blob/8499dc2/CHANGELOG.md#073---2018-02-16","https://github.com/jupyterhub/oauthenticator/commit/1845c0e4b1bff3462c91c3108c85205acd3c75a2","https://blog.jupyter.org/security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76","https://github.com/jupyterhub/oauthenticator/blob/8499dc2/CHANGELOG.md#073---2018-02-16"],"products":["jupyter:oauthenticator"],"source":"nvd","synced_at":"2026-10-19T20:48:34.567387330+00:00"},"epss":{"cve":"CVE-2018-7206","score":0.01774,"percentile":0.7819,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8x3m-m3x9-54fj","url":"https://osv.dev/vulnerability/GHSA-8x3m-m3x9-54fj","summary":"JupyterHub OAuthenticator elevation of privilege","modified":"2024-12-03T05:59:23.105324Z","packages":[{"ecosystem":"PyPI","name":"oauthenticator","purl":"pkg:pypi/oauthenticator","ranges":[">=0.6 <0.6.2"],"fixed":["0.6.2"]},{"ecosystem":"PyPI","name":"oauthenticator","purl":"pkg:pypi/oauthenticator","ranges":[">=0.7 <0.7.3"],"fixed":["0.7.3"]}]},{"id":"PYSEC-2018-68","url":"https://osv.dev/vulnerability/PYSEC-2018-68","summary":"","modified":"2024-11-22T05:12:42.388879Z","packages":[{"ecosystem":"PyPI","name":"oauthenticator","purl":"pkg:pypi/oauthenticator","ranges":[">=0.6 <0.6.2",">=0.7 <0.7.3"],"fixed":["0.6.2","0.7.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}