Known Vulnerability
The current version has a known security vulnerability. Review the advisory and consider upgrading.
Security Vulnerability
High
GHSA-p2vc-m5fv-9w9m
H2O Vulnerable to Denial of Service (DoS) via `/3/ImportFiles` Endpoint
Source: osv.dev · Flagged: 1 month ago
h2o has 213K monthly downloads and 7K GitHub stars. Version 3.46.0.11 supports Python 3.7+, first published in 2018.
It is stably maintained under a permissive license, last released in May 2026.
It is built on top of requests and tabulate. It is used by 19 tracked packages, including h2o-wave-ml, mgo-prwrkpi and freeaeon-ml.
GitHub topics include h2o, machine-learning and data-science.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
84
Adoption
53
Community
90
Provenance
0
How the maintenance status was determined
Last commit
46 days ago
Monthly downloads
212,566
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
212,566
Stars
7,495
Stars per 1k downloads
35.26
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
6,149
Month daily avg
7,086
Momentum
-13.2%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.7
Cutting Edge
Minimum supported version is 3.12 or newer
Modern
Minimum supported version is 3.9, 3.10, or 3.11
•
Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
Apache v2
•
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
45 days ago
Total releases
125
Releases/year
15.4
•
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
342
Monthly downloads
212,566
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
95
Issue Burden
377.2
per 1k stars
Discussions
4.8
per 1k stars
Fork Ratio
16.9%
contrib / forks
Stale Release
No
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
4.1K
Windows
28
macOS
8
Python Versions
3.12
24.6%
804
3.8
20.3%
665
3.13
18.7%
612
3.7
18.3%
600
3.11
18.1%
593
Top Countries
1.
US
3.2K
US
2.
BR
255
BR
3.
KR
184
KR
4.
ES
144
ES
5.
IE
76
IE
6.
SG
73
SG
7.
AU
68
AU
8.
NL
57
NL
9.
GB
52
GB
10.
FR
43
FR
Dependencies
2
3 optional dependencies
- gssapi[kerberos]
- pykerberos[kerberos]
- winkerberos[kerberos]
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
Apache v2
First Release
May 22, 2018
Last Release
1 month ago
Last Commit
1 month ago
Latest Version
3.46.0.11
Total Releases
125
Contributors
342
Open PRs
43
Archived
No
Author
H2O.ai
Python Versions
3.7
3.8
3.9
3.10
3.11
Wheels
py2
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh