Vulnerability in Jupyterlab Jupyterlab-git
CVE-2026-54528
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-insensit…
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Jupyterlab Jupyterlab-git — versions < 0.54.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-54528?
- CVE-2026-54528 is a high-severity vulnerability in Jupyterlab Jupyterlab-git, classified under Improper Handling of Case Sensitivity. CVSS score: 7.1/10. Published 2026-07-08.
- How severe is CVE-2026-54528?
- High severity. CVSS v3 base score is 7.1 out of 10.