{"schema_version":1,"title":"jupyterhub (PyPI) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 9 vulnerabilities in jupyterhub (PyPI): 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-54338, was published on 25 August 2026.","url":"https://junglewise.ai/threats/technologies/jupyterhub","json_url":"https://junglewise.ai/threats/technologies/jupyterhub.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/jupyterhub","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":9,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":3,"last_365_days":5},"latest":[{"cve":"CVE-2026-54338","cvss":5.3,"epss":0.0044,"slug":"cve-2026-54338-jupyterhub-unauthenticated-denial-of-service-in-login-form","title":"JupyterHub unauthenticated denial of service in login form handling","severity":"medium","exploited":false,"published_at":"2026-08-25T19:29:19+00:00","url":"https://junglewise.ai/threats/cve-2026-54338-jupyterhub-unauthenticated-denial-of-service-in-login-form"},{"cve":"CVE-2024-28233","cvss":3.1,"epss":0.0033,"slug":"cve-2024-28233-cross-site-scripting-xss-in-jupyterhub-via-self-xss-leveraged-by","title":"PYSEC-2026-1480 - Cross site scripting (XSS) in JupyterHub via Self-XSS leveraged by Cookie Tossing","severity":"low","exploited":false,"published_at":"2026-07-07T11:45:36.867733+00:00","url":"https://junglewise.ai/threats/cve-2024-28233-cross-site-scripting-xss-in-jupyterhub-via-self-xss-leveraged-by"},{"cve":"CVE-2019-10255","cvss":3,"epss":0.0176,"slug":"cve-2019-10255-open-redirect-vulnerability-in-jupyterhub-and-notebook","title":"PYSEC-2026-647 - Open Redirect vulnerability in jupyterhub and notebook","severity":"low","exploited":false,"published_at":"2026-07-02T14:13:09.322452+00:00","url":"https://junglewise.ai/threats/cve-2019-10255-open-redirect-vulnerability-in-jupyterhub-and-notebook"},{"cve":"CVE-2026-40864","cvss":5.4,"epss":0.0018,"slug":"cve-2026-40864-jupyterhub-xsrf-protection-bypass-in-http-form-endpoints","title":"JupyterHub XSRF protection bypass in HTTP form endpoints","severity":"medium","exploited":false,"published_at":"2026-05-22T21:16:43.177+00:00","url":"https://junglewise.ai/threats/cve-2026-40864-jupyterhub-xsrf-protection-bypass-in-http-form-endpoints"},{"cve":"CVE-2026-33709","cvss":6.1,"epss":0.003,"slug":"cve-2026-33709-jupyter-jupyterhub-open-redirect-vulnerability","title":"Jupyter JupyterHub open redirect vulnerability","severity":"medium","exploited":false,"published_at":"2026-04-03T22:16:26.657+00:00","url":"https://junglewise.ai/threats/cve-2026-33709-jupyter-jupyterhub-open-redirect-vulnerability"},{"cve":"CVE-2024-41942","cvss":3.1,"epss":0.0059,"slug":"cve-2024-41942-jupyterhub-has-a-privilege-escalation-vulnerability-with-the","title":"PYSEC-2024-200 - JupyterHub is software that allows one to create a multi-user server for Jupyter notebooks. Prior to versions 4.1.6 and 5.1.0, if a user is","severity":"low","exploited":false,"published_at":"2024-08-08T15:15:17+00:00","url":"https://junglewise.ai/threats/cve-2024-41942-jupyterhub-has-a-privilege-escalation-vulnerability-with-the"},{"cve":"CVE-2021-41247","cvss":3.1,"epss":0.008,"slug":"cve-2021-41247-incomplete-jupyterhub-logout-with-simultaneous-jupyterlab","title":"PYSEC-2021-386 - JupyterHub is an open source multi-user server for Jupyter notebooks. In affected versions users who have multiple JupyterLab tabs open in t","severity":"low","exploited":false,"published_at":"2021-11-04T18:15:00+00:00","url":"https://junglewise.ai/threats/cve-2021-41247-incomplete-jupyterhub-logout-with-simultaneous-jupyterlab"},{"cve":"CVE-2020-36191","cvss":3.1,"epss":0.005,"slug":"cve-2020-36191-cross-site-request-forgery-in-jupyterhub","title":"PYSEC-2021-67 - JupyterHub 1.1.0 allows CSRF in the admin panel via a request that lacks an _xsrf field, as demonstrated by a /hub/api/user request (to add","severity":"low","exploited":false,"published_at":"2021-01-13T04:15:00+00:00","url":"https://junglewise.ai/threats/cve-2020-36191-cross-site-request-forgery-in-jupyterhub"},{"cvss":3.1,"slug":"pysec-2018-151-an-issue-was-discovered-in-project-jupyter-jupyterhub-20e45d8e","title":"PYSEC-2018-151 - 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 G","severity":"low","exploited":false,"published_at":"2018-02-18T03:29:00+00:00","url":"https://junglewise.ai/threats/pysec-2018-151-an-issue-was-discovered-in-project-jupyter-jupyterhub-20e45d8e"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"tensorflow (PyPI)","slug":"pypi-tensorflow","vulnerabilities":428,"url":"https://junglewise.ai/threats/technologies/pypi-tensorflow"},{"name":"tensorflow-cpu (PyPI)","slug":"tensorflow-cpu","vulnerabilities":424,"url":"https://junglewise.ai/threats/technologies/tensorflow-cpu"},{"name":"tensorflow-gpu (PyPI)","slug":"tensorflow-gpu","vulnerabilities":421,"url":"https://junglewise.ai/threats/technologies/tensorflow-gpu"},{"name":"open-webui (PyPI)","slug":"open-webui","vulnerabilities":177,"url":"https://junglewise.ai/threats/technologies/open-webui"},{"name":"Django (PyPI)","slug":"django","vulnerabilities":172,"url":"https://junglewise.ai/threats/technologies/django"},{"name":"apache-airflow (PyPI)","slug":"apache-airflow","vulnerabilities":152,"url":"https://junglewise.ai/threats/technologies/apache-airflow"},{"name":"plone (PyPI)","slug":"pypi-plone","vulnerabilities":101,"url":"https://junglewise.ai/threats/technologies/pypi-plone"},{"name":"praisonai (PyPI)","slug":"pypi-praisonai","vulnerabilities":86,"url":"https://junglewise.ai/threats/technologies/pypi-praisonai"},{"name":"exiv2 (PyPI)","slug":"exiv2","vulnerabilities":85,"url":"https://junglewise.ai/threats/technologies/exiv2"},{"name":"nltk (PyPI)","slug":"nltk","vulnerabilities":83,"url":"https://junglewise.ai/threats/technologies/nltk"},{"name":"mlflow (PyPI)","slug":"mlflow","vulnerabilities":82,"url":"https://junglewise.ai/threats/technologies/mlflow"},{"name":"pillow (PyPI)","slug":"pillow","vulnerabilities":79,"url":"https://junglewise.ai/threats/technologies/pillow"}],"technology":{"hub":true,"name":"jupyterhub (PyPI)","slug":"jupyterhub","vendor":{"name":"PyPI","slug":"pypi","url":"https://junglewise.ai/threats/vendors/pypi"},"aliases":[],"homepage":"https://jupyter.org/hub","repo_url":"https://github.com/jupyterhub/jupyterhub","description":"A multi-user hub that manages and proxies multiple instances of the single-user Jupyter notebook server.","url":"https://junglewise.ai/threats/technologies/jupyterhub"},"most_severe":[{"cve":"CVE-2026-33709","cvss":6.1,"epss":0.003,"slug":"cve-2026-33709-jupyter-jupyterhub-open-redirect-vulnerability","title":"Jupyter JupyterHub open redirect vulnerability","severity":"medium","exploited":false,"published_at":"2026-04-03T22:16:26.657+00:00","url":"https://junglewise.ai/threats/cve-2026-33709-jupyter-jupyterhub-open-redirect-vulnerability"},{"cve":"CVE-2026-40864","cvss":5.4,"epss":0.0018,"slug":"cve-2026-40864-jupyterhub-xsrf-protection-bypass-in-http-form-endpoints","title":"JupyterHub XSRF protection bypass in HTTP form endpoints","severity":"medium","exploited":false,"published_at":"2026-05-22T21:16:43.177+00:00","url":"https://junglewise.ai/threats/cve-2026-40864-jupyterhub-xsrf-protection-bypass-in-http-form-endpoints"},{"cve":"CVE-2026-54338","cvss":5.3,"epss":0.0044,"slug":"cve-2026-54338-jupyterhub-unauthenticated-denial-of-service-in-login-form","title":"JupyterHub unauthenticated denial of service in login form handling","severity":"medium","exploited":false,"published_at":"2026-08-25T19:29:19+00:00","url":"https://junglewise.ai/threats/cve-2026-54338-jupyterhub-unauthenticated-denial-of-service-in-login-form"},{"cve":"CVE-2021-41247","cvss":3.1,"epss":0.008,"slug":"cve-2021-41247-incomplete-jupyterhub-logout-with-simultaneous-jupyterlab","title":"PYSEC-2021-386 - JupyterHub is an open source multi-user server for Jupyter notebooks. In affected versions users who have multiple JupyterLab tabs open in t","severity":"low","exploited":false,"published_at":"2021-11-04T18:15:00+00:00","url":"https://junglewise.ai/threats/cve-2021-41247-incomplete-jupyterhub-logout-with-simultaneous-jupyterlab"},{"cve":"CVE-2024-41942","cvss":3.1,"epss":0.0059,"slug":"cve-2024-41942-jupyterhub-has-a-privilege-escalation-vulnerability-with-the","title":"PYSEC-2024-200 - JupyterHub is software that allows one to create a multi-user server for Jupyter notebooks. Prior to versions 4.1.6 and 5.1.0, if a user is","severity":"low","exploited":false,"published_at":"2024-08-08T15:15:17+00:00","url":"https://junglewise.ai/threats/cve-2024-41942-jupyterhub-has-a-privilege-escalation-vulnerability-with-the"},{"cve":"CVE-2020-36191","cvss":3.1,"epss":0.005,"slug":"cve-2020-36191-cross-site-request-forgery-in-jupyterhub","title":"PYSEC-2021-67 - JupyterHub 1.1.0 allows CSRF in the admin panel via a request that lacks an _xsrf field, as demonstrated by a /hub/api/user request (to add","severity":"low","exploited":false,"published_at":"2021-01-13T04:15:00+00:00","url":"https://junglewise.ai/threats/cve-2020-36191-cross-site-request-forgery-in-jupyterhub"},{"cve":"CVE-2024-28233","cvss":3.1,"epss":0.0033,"slug":"cve-2024-28233-cross-site-scripting-xss-in-jupyterhub-via-self-xss-leveraged-by","title":"PYSEC-2026-1480 - Cross site scripting (XSS) in JupyterHub via Self-XSS leveraged by Cookie Tossing","severity":"low","exploited":false,"published_at":"2026-07-07T11:45:36.867733+00:00","url":"https://junglewise.ai/threats/cve-2024-28233-cross-site-scripting-xss-in-jupyterhub-via-self-xss-leveraged-by"},{"cvss":3.1,"slug":"pysec-2018-151-an-issue-was-discovered-in-project-jupyter-jupyterhub-20e45d8e","title":"PYSEC-2018-151 - 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 G","severity":"low","exploited":false,"published_at":"2018-02-18T03:29:00+00:00","url":"https://junglewise.ai/threats/pysec-2018-151-an-issue-was-discovered-in-project-jupyter-jupyterhub-20e45d8e"},{"cve":"CVE-2019-10255","cvss":3,"epss":0.0176,"slug":"cve-2019-10255-open-redirect-vulnerability-in-jupyterhub-and-notebook","title":"PYSEC-2026-647 - Open Redirect vulnerability in jupyterhub and notebook","severity":"low","exploited":false,"published_at":"2026-07-02T14:13:09.322452+00:00","url":"https://junglewise.ai/threats/cve-2019-10255-open-redirect-vulnerability-in-jupyterhub-and-notebook"}],"generated_at":"2026-09-27T03:07:00.185062+00:00"}