{"id":"CVE-2024-28188","aliases":["GHSA-v9g2-g7j4-4jxc","PYSEC-2026-1479"],"url":"https://o3.security/vulnerability/CVE-2024-28188","summary":"jupyter-scheduler's endpoint is missing authentication","details":"### Impact\n\n`jupyter_scheduler` is missing an authentication check in Jupyter Server on an API endpoint (`GET /scheduler/runtime_environments`) which lists the names of the Conda environments on the server. In affected versions, `jupyter_scheduler` allows an unauthenticated user to obtain the list of Conda environment names on the server. This reveals any information that may be present in a Conda environment name.\n\nThis issue does **not** allow an unauthenticated third party to read, modify, or enter the Conda environments present on the server where `jupyter_scheduler` is running. This issue only reveals the list of Conda environment names.\n\nImpacted versions: `>=1.0.0,<=1.1.5 ; ==1.2.0 ; >=1.3.0,<=1.8.1 ; >=2.0.0,<=2.5.1`\n\n### Patches\n\n* `jupyter-scheduler==1.1.6`\n* `jupyter-scheduler==1.2.1`\n* `jupyter-scheduler==1.8.2`\n* `jupyter-scheduler==2.5.2`\n\n### Workarounds\n\nServer operators who are unable to upgrade can disable the `jupyter-scheduler` extension with:\n\n```\njupyter server extension disable jupyter-scheduler\n```\n\n### References\n\nIf you have any questions or comments about this advisory we ask that you contact AWS/Amazon Security via our vulnerability reporting page [1] or directly via email to [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.\n\n[1] Vulnerability reporting page: https://aws.amazon.com/security/vulnerability-reporting\n","published":"2024-05-23T11:54:53.672Z","modified":"2026-08-12T03:51:24.316978057Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"jupyter-scheduler","fixedVersion":"1.1.6"},{"ecosystem":"PyPI","name":"jupyter-scheduler","fixedVersion":"1.2.1"},{"ecosystem":"PyPI","name":"jupyter-scheduler","fixedVersion":"1.8.2"},{"ecosystem":"PyPI","name":"jupyter-scheduler","fixedVersion":"2.5.2"}],"fix":{"url":"https://github.com/jupyter-server/jupyter_server/pull/1392","label":"jupyter-server/jupyter_server#1392"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/28xxx/CVE-2024-28188.json"},{"type":"ADVISORY","url":"https://github.com/jupyter-server/jupyter-scheduler/security/advisories/GHSA-v9g2-g7j4-4jxc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-28188"},{"type":"FIX","url":"https://github.com/jupyter-server/jupyter_server/pull/1392"},{"type":"WEB","url":"https://github.com/jupyter-server/jupyter-scheduler/commit/06435a2277bb2b8f441ec9cedafa474572b92c5d"},{"type":"WEB","url":"https://github.com/jupyter-server/jupyter-scheduler/commit/a621b386397280cc8ee5a208dca4607cb71cdd65"},{"type":"WEB","url":"https://github.com/jupyter-server/jupyter-scheduler/commit/d428ac871909444e175ba421bf8ab4980d6ebf9f"},{"type":"WEB","url":"https://github.com/jupyter-server/jupyter-scheduler/commit/f4137a779fdf0cc4a9688a42dd8c6e7ade60f044"},{"type":"PACKAGE","url":"https://github.com/jupyter-server/jupyter-scheduler"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:24.316978057Z"}}