Bug 2498291 (CVE-2026-54528) - CVE-2026-54528 jupyterlab-git: JupyterLab Git: Information disclosure via case-sensitivity bypass in excluded path enforcement
Summary: CVE-2026-54528 jupyterlab-git: JupyterLab Git: Information disclosure via cas...
Keywords:
Status: NEW
Alias: CVE-2026-54528
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-08 22:02 UTC by OSIDB Bzimport
Modified: 2026-07-10 07:06 UTC (History)
0 users

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Description OSIDB Bzimport 2026-07-08 22:02:11 UTC 
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.
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