CVE-2026-54528
7.1 · HIGHOverview
CVE-2026-54528 is a high-severity vulnerability affecting jupyter jupyterlab-git. It was published on July 8, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
JupyterLab Git is a Git extension for JupyterLab. Prior to 0.54.0, jupyterlab-git uses fnmatch.fnmatchcase() in GitHandler.prepare() in jupyterlab_git/handlers.py to enforce excluded_paths, allowing an authenticated user on a case-insensitive filesystem to vary URL path casing and read excluded directories. This issue is fixed in version 0.54.0.
Remediation
Check the references section for vendor advisories and patches from jupyter. Update jupyterlab-git to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| jupyter | jupyterlab-git | >= 0, < 0.54.0 | Affected |
References
Frequently Asked Questions
What is CVE-2026-54528?
CVE-2026-54528 is a high-severity vulnerability affecting jupyter jupyterlab-git. It was published on July 8, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2026-54528?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-54528?
Check the references section for vendor advisories and patches from jupyter. Update jupyterlab-git to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-54528?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-54528 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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