No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
pyhanko-certvalidator has 5.5M monthly downloads and 738 GitHub stars. Version 0.31.1 supports Python 3.10+, first published in 2020.
It is actively maintained under a permissive license, last released in May 2026.
It is built on top of asn1crypto, cryptography and oscrypto. It is used by 12 tracked packages, including pyhanko, xhtml2pdf and pyattest.
GitHub topics include signature, pdf and pades.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
60
Adoption
60
Community
50
Provenance
100
How the maintenance status was determined
Last commit
3 days ago
Monthly downloads
5,513,170
•
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
5,513,170
Stars
738
Stars per 1k downloads
0.13
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
160,875
Month daily avg
183,772
Momentum
-12.5%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.10
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
MIT
•
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
62 days ago
Total releases
55
Releases/year
9.8
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
24
Monthly downloads
5,513,170
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
64
Issue Burden
6.8
per 1k stars
Discussions
422.8
per 1k stars
Fork Ratio
23.3%
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
80.6K
Windows
2.8K
macOS
1.1K
Python Versions
3.12
44.0%
35.8K
3.11
30.3%
24.6K
3.13
9.0%
7.3K
3.14
8.4%
6.8K
3.10
8.3%
6.8K
Top Countries
1.
US
52.6K
US
2.
DE
7.7K
DE
3.
JP
6.9K
JP
4.
IN
3.3K
IN
5.
ID
3.0K
ID
6.
BR
1.4K
BR
7.
CN
1.2K
CN
8.
IE
1.2K
IE
9.
SG
1.1K
SG
10.
FR
741
FR
Dependencies
5
- asn1crypto >=1.5.1
- cryptography >=48.0.0
- oscrypto >=1.1.0
- requests >=2.31.0
- uritools >=3.0.1
1 optional dependencies
- aiohttp[async-http]
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
MIT
First Release
December 5, 2020
Last Release
2 months ago
Last Commit
3 days ago
Latest Version
0.31.1
Total Releases
55
Contributors
24
Open PRs
1
Archived
No
Python Versions
3
3.10
3.11
3.12
3.13
3.14
Wheels
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh