CVE-2026-54528

HIGH
MEDIUM Priority: 0.03 BB Relevance: 64/100
Published: 2026-07-08 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: Low
A: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
jupyter jupyterlab-git < 0.54.0

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

EPSS — Exploitation Probability

0.41%
Raw Score 0.004110
Percentile 35.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00411
2026-10-28
0.00411

Intelligence Sources

nvd ref →