arc4 has no known vulnerabilities on the latest version (0.5.0). DepScope rates its health at 68/100 (moderate risk).

What is the latest version of arc4?

The latest version of arc4 is 0.5.0, released 2026-04-05.

Does arc4 have known vulnerabilities?

No known vulnerabilities on the latest version of arc4.

No, arc4 is actively maintained. Latest release: 0.5.0 (2026-04-05).

Popular alternatives to arc4 in PyPI include: boto3, boto3/, packaging, urllib3/, certifi.

pypiv0.5.0

A small and insanely fast ARCFOUR (RC4) cipher implementation of Python

License MITpermissive10 versions1 maintainers0 deps12,134 weekly dl

/ 100

Health

safe to use

[email protected] is safe to use (health: 68/100)

Health breakdown0 – 100

25/25

maintenance

10/20

popularity

25/25

security

6/15

maturity

2/15

community

Vulnerabilities

none known

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/pypi/arc4