CVE-2025-30167: Jupyter Core is a package for the core common functionality of Jupyter projects

Q: How do I fix CVE-2025-30167?

jupyter core: upgrade to 5.8.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-30167 being exploited?

CVE-2025-30167 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-30167 affect?

CVE-2025-30167 affects jupyter core. Severity is high (CVSS 7.3). Jupyter Core is a package for the core common functionality of Jupyter projects. When using Jupyter Core prior to version 5.8.0 on Windows, the shared `%PROGRAMDATA%` directory is searched for configuration files (`SYSTEM_CONFIG_PATH` and `

Routine

HIGH 7.3UPGRADE

CVE-2025-30167 is a high-severity flaw (CVSS 7.3) affecting jupyter core. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Jupyter Core is a package for the core common functionality of Jupyter projects. When using Jupyter Core prior to version 5.8.0 on Windows, the shared `%PROGRAMDATA%` directory is searched for configuration files (`SYSTEM_CONFIG_PATH` and `SYSTEM_JUPYTER_PATH`), which may allow users to create configuration files affecting other users. Only shared Windows systems with multiple users and unprotected `%PROGRAMDATA%` are affected. Users should upgra

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-427
Published	2025-06-03
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: jupyter

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-03 17:15 UTCPublished CVE record published
2026-06-17 09:08 UTCUpdated Record last modified

jupyter jupyter core UPGRADE

Affected: < 5.8.0

Fixed in: 5.8.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy jupyter-core || rpm -q jupyter-core || jupyter-core --version

2. UPGRADE to 5.8.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade jupyter-core

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade jupyter-core

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-30167?

jupyter core: upgrade to 5.8.0. Exact commands for each OS are on this page.

Is CVE-2025-30167 being exploited?

CVE-2025-30167 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-30167 affect?

CVE-2025-30167 affects jupyter core. Severity is high (CVSS 7.3). Jupyter Core is a package for the core common functionality of Jupyter projects. When using Jupyter Core prior to version 5.8.0 on Windows, the shared `%PROGRAMDATA%` directory is searched for configuration files (`SYSTEM_CONFIG_PATH` and `

How urgent is CVE-2025-30167?

Priority 28/100. High severity

Software pages

Windows vulnerabilities · Jupyter vulnerabilities

References

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