Known Vulnerability
The current version has a known security vulnerability. Review the advisory and consider upgrading.
Security Vulnerability
PYSEC-2026-4112
JupyterLab: Cross-site scripting (XSS) in JupyterLab via notebook cells pasted from the system clipboard
Source: osv.dev · Flagged: 1 week ago
Security Vulnerability
High
GHSA-6966-vjj6-99xv
JupyterLab: Cross-site scripting (XSS) in JupyterLab via notebook cells pasted from the system clipboard
Source: osv.dev · Flagged: 1 week ago
Monthly downloads
28.8M
Weekly downloads
7.1M
GitHub stars
13.4K
Downloads in the 30 and 7 days to October 10, 2026. Refreshed weekly.
Package Information
Latest Version
Requires Python
>=3.9
Licence
BSD 3-Clause License
Last Release
1 week ago
First Release
July 30, 2015
Total Releases
215
Python Versions
3.9
3.10
3.11
3.12
3.13
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
87
Adoption
80
Community
100
Provenance
0
How the maintenance status was determined
Last commit
11 days ago
Monthly downloads
28,846,526
•
Active
Activity within 30 days
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
28,846,526
Stars
13,429
Stars per 1k downloads
0.47
•
Industry Standard
> 10,000,000 monthly downloads
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
1,010,960
Month daily avg
961,551
Momentum
+5.1%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100More insights and metrics
Python version support tiers
requires_python
>=3.9
Cutting Edge
Minimum supported version is 3.14 or newer
Modern
Minimum supported version is 3.11 to 3.13
•
Legacy
Supports 3.10 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
BSD 3-Clause License
•
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
11 days ago
Total releases
215
Releases/year
19.2
•
Rapid
Last release within 365 days and > 12 releases/year
Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
564
Monthly downloads
28,846,526
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
•
Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
98
Issue Burden
138.3
per 1k stars
Discussions
5.4
per 1k stars
Fork Ratio
9.7%
contrib / forks
Stale Release
No
PR Velocity
Quiet
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
667.3K
Windows
14.9K
macOS
6.1K
Python Versions
3.10
39.4%
225.8K
3.12
26.0%
148.7K
3.11
18.0%
103.1K
3.13
9.1%
52.3K
3.8
7.5%
42.9K
Top Countries
1.
US
475.8K
US
2.
IE
57.2K
IE
3.
NL
37.5K
NL
4.
DE
28.6K
DE
5.
SG
16.4K
SG
6.
IN
11.8K
IN
7.
KR
9.0K
KR
8.
JP
7.6K
JP
9.
CA
6.9K
CA
10.
CN
6.4K
CN
Weekly Downloads
GitHub Stars
Dependencies
5
- jupyter-server <3,>=2.4.0
- jupyterlab <4.6,>=4.5.11
- jupyterlab-server <3,>=2.28.0
- notebook-shim <0.3,>=0.2
- tornado >=6.2.0
18 optional dependencies
-
hatch[dev]extra == "dev"
-
importlib-resources>=5.0[test]python_version < "3.10" and extra == "test"
-
ipykernel[test]extra == "test"
-
jupyter-server<3,>=2.4.0[test]extra == "test"
-
jupyterlab-server<3,>=2.28.0[test]extra == "test"
-
myst-parser[docs]extra == "docs"
-
nbsphinx[docs]extra == "docs"
-
nbval[test]extra == "test"
-
pre-commit[dev]extra == "dev"
-
pydata-sphinx-theme[docs]extra == "docs"
-
pytest>=7.0[test]extra == "test"
-
pytest-console-scripts[test]extra == "test"
-
pytest-timeout[test]extra == "test"
-
pytest-tornasync[test]extra == "test"
-
requests[test]extra == "test"
-
sphinx>=1.3.6[docs]extra == "docs"
-
sphinxcontrib-github-alt[docs]extra == "docs"
-
sphinxcontrib-spelling[docs]extra == "docs"
Used By
631
- jupyter 12.7M/mo
- hdijupyterutils 890.4K/mo
- autovizwidget 890.0K/mo
- keplergl 441.0K/mo
- jupyter-nbextensions-configurator 412.9K/mo
- jupyter-http-over-ws 229.7K/mo
- nbzip 112.3K/mo
- nglview 75.2K/mo
- jupyterlab-launcher 68.3K/mo
- acryl-great-expectations 50.1K/mo
Data and sources
Tracking Since
September 26, 2026
Data Updated
October 11, 2026
Data Freshness
Fresh
Keywords