Dashboard / CVE-2026-54527

CVE-2026-54527

CRITICAL
INFO Priority: 0.05 BB Relevance: 59/100
Published: 2026-07-08 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Active
S: X
AT: None
VC: High
VI: High
VA: High

Description

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 in the Git History tab. This issue is fixed in version 0.54.0.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
jupyter jupyterlab-git 0.30.1 – 0.54.0
jupyter jupyterlab-git 0.30.0
jupyter jupyterlab-git 0.30.0

References & Advisories (3)

Bug Bounty Relevance

59 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

9.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.53%
Raw Score 0.005290
Percentile 44.6%
Date 2026-10-28

Intelligence Sources

nvd ref →

External Links