jupyterlab-git excluded_paths Case-Sensitivity Bypass Allows Reading Excluded Directories

Summaryjupyterlab-git 0.53.0 latest, 2026-04-30 uses fnmatch.fnmatchcase in GitHandler.prepare jupyterlabgit/handlers.py:91 to enforce the admin-configured excludedpaths security control. Because fnmatchcase is unconditionally case-sensitive, an authenticated user on a case-insensitive filesystem...

PYSEC-2026-2539 jupyterlab-git excluded_paths Case-Sensitivity Bypass Allows Reading Excluded Directories

Summary jupyterlab-git 0.53.0 latest, 2026-04-30 uses fnmatch.fnmatchcase in GitHandler.prepare jupyterlabgit/handlers.py:91 to enforce the admin-configured excludedpaths security control. Because fnmatchcase is unconditionally case-sensitive, an authenticated user on a case-insensitive filesyste...

elyra (>=0.7.1, <=4.1.1), elyra-code-snippet-extension (>=1.3.0, <=4.1.1) +12 more potentially affected by CVE-2026-54528 via jupyterlab-git (>=0.11.0, <=0.52.0)

jupyterlab-git PYPI version =0.11.0, =0.7.1, =1.3.0, =3.14.0, =1.3.0, =1.3.0, =2.2.0, =3.14.0, =1.3.1, =0.4.0, =2.1.0, =0.1.30, =1.3.19, =0.1.0, =0.2.9 Source cves: CVE-2026-54528 Source advisory: OSV:PYSEC-2026-2539...

elyra (>=2.2.2, <=4.1.1), elyra-code-snippet-extension (>=1.3.0, <=4.1.1) +12 more potentially affected by CVE-2026-54527 via jupyterlab-git (>=0.30.0, <=0.52.0)

jupyterlab-git PYPI version =0.30.0, =2.2.2, =1.3.0, =3.14.0, =1.3.0, =1.3.0, =2.2.2, =3.14.0, =2.2.2, =0.4.0, =3.0.0b0, =0.1.30, =1.3.19, =0.1.0, =0.2.9 Source cves: CVE-2026-54527 Source advisory: OSV:PYSEC-2026-2540...

PYSEC-2026-2540 jupyterlab-git extension: Stored XSS leading to RCE

Overview Amazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in the PlainTextDiff.ts component, where the createHeader method passes Git filenames directly t...

jupyterlab-git extension: Stored XSS leading to RCE

OverviewAmazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in thePlainTextDiff.ts component, where the createHeader method passes Git filenames directly to...

PYSEC-2026-2541 jupyterlab-git extension: Stored XSS leading to RCE

Overview Amazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in the PlainTextDiff.ts component, where the createHeader method passes Git filenames directly t...

jupyterlab-git extension: Stored XSS leading to RCE

OverviewAmazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in thePlainTextDiff.ts component, where the createHeader method passes Git filenames directly to...

fps-jupyterlab-git (>=0.3.0, <=0.3.1) potentially affected by CVE-2026-54527 via jupyterlab-git-core (0.53.0)

jupyterlab-git-core PYPI version 0.53.0 is affected by a known vulnerability. The following packages have a transitive dependency on jupyterlab-git-core and may be impacted: - fps-jupyterlab-git =0.3.0, =0.3.1 Source cves: CVE-2026-54527 Source advisory: OSV:PYSEC-2026-2541...

PT-2026-59197

Summary jupyterlab-git 0.53.0 latest, 2026-04-30 uses fnmatch.fnmatchcase in GitHandler.prepare jupyterlab git/handlers.py:91 to enforce the admin-configured excluded paths security control. Because fnmatchcase is unconditionally case-sensitive, an authenticated user on a case-insensitive...

PT-2026-59199

Overview Amazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in the PlainTextDiff.ts component, where the createHeader method passes Git filenames directly t...

PT-2026-59198

Overview Amazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in the PlainTextDiff.ts component, where the createHeader method passes Git filenames directly t...

CVE-2026-54528

A flaw was found in JupyterLab Git, a Git extension for JupyterLab. This vulnerability allows an authenticated user on a case-insensitive filesystem to bypass administrator-configured excluded paths by varying the case of the URL path segment. This bypass enables the user to read file content, vi...

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 jupyterlabgit/handlers.py to enforce excludedpaths, allowing an authenticated user on a case-insensitive filesystem to vary URL path casing and read excluded...

CVE-2026-54527

JupyterLab Git is a Git extension for JupyterLab. From 0.30.0b3 before 0.54.0, the PlainTextDiff.ts createHeader method passes Git filenames directly to innerHTML when rendering renamed files in commit history, allowing a crafted filename to execute JavaScript when a victim views the rename diff ...

EUVD-2026-42429

JupyterLab Git is a Git extension for JupyterLab. Prior to 0.54.0, jupyterlab-git uses fnmatch.fnmatchcase in GitHandler.prepare in jupyterlabgit/handlers.py to enforce excludedpaths, allowing an authenticated user on a case-insensitive filesystem to vary URL path casing and read excluded...

CVE-2026-54528 jupyterlab-git excluded_paths Case-Sensitivity Bypass Allows Reading Excluded Directories

JupyterLab Git is a Git extension for JupyterLab. Prior to 0.54.0, jupyterlab-git uses fnmatch.fnmatchcase in GitHandler.prepare in jupyterlabgit/handlers.py to enforce excludedpaths, allowing an authenticated user on a case-insensitive filesystem to vary URL path casing and read excluded...

CVE-2026-54528

Summary of vulnerability (CVE-2026-54528): The jupyterlab-git extension for JupyterLab is affected prior to version 0.54.0. On case-insensitive filesystems (e.g., macOS APFS, Windows NTFS), the code path that enforces excluded_paths uses fnmatch.fnmatchcase(), which is case-sensitive and can be b...

CVE-2026-54528 jupyterlab-git excluded_paths Case-Sensitivity Bypass Allows Reading Excluded Directories

JupyterLab Git is a Git extension for JupyterLab. Prior to 0.54.0, jupyterlab-git uses fnmatch.fnmatchcase in GitHandler.prepare in jupyterlabgit/handlers.py to enforce excludedpaths, allowing an authenticated user on a case-insensitive filesystem to vary URL path casing and read excluded...

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 jupyterlabgit/handlers.py to enforce excludedpaths, allowing an authenticated user on a case-insensitive filesystem to vary URL path casing and read excluded...