h2 has no known vulnerabilities on the latest version (4.4.1). DepScope rates its health at 90/100 (low risk).

What is the latest version of h2?

The latest version of h2 is 4.4.1, released 2026-08-03.

Does h2 have known vulnerabilities?

No known vulnerabilities on the latest version of h2.

No, h2 is actively maintained. Latest release: 4.4.1 (2026-08-03).

What are alternatives to h2?

Popular alternatives to h2 in PyPI include: urllib3, cryptography, cffi, click, pydantic-core.

h2

pypiv4.4.1

Pure-Python HTTP/2 protocol implementation

License MITpermissive0 versions0 deps35,545,755 weekly dl

python-hyper/h2/

/ 100

Health

safe to use

[email protected] is safe to use (health: 90/100)

Health breakdown0 – 100

25/25

maintenance

20/20

popularity

25/25

security

15/15

maturity

5/15

community

0/15

popularity_floor

Vulnerabilities

none known

OSS Scorecard

OpenSSF security posture score

3.5/10

weak

Maintainer trust

Active maintainers (3m)

2

Contributors (12m)

8

Primary author dominance

55%

GitHub stars

1,035

Quality signals

OSS Criticality

0.49medium

Download trend

declining(-47.3%)

Health History

Dependency Tree

License Audit

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/pypi/h2

h2

pypiv4.4.1

Pure-Python HTTP/2 protocol implementation

License MITpermissive0 versions0 deps35,545,755 weekly dl

python-hyper/h2/

/ 100

Health

safe to use

[email protected] is safe to use (health: 90/100)

Health breakdown0 – 100

25/25

maintenance

20/20

popularity

25/25

security

15/15

maturity

5/15

community

0/15

popularity_floor

Vulnerabilities

none known

OSS Scorecard

OpenSSF security posture score

3.5/10

weak

Maintainer trust

Active maintainers (3m)

2

Contributors (12m)

8

Primary author dominance

55%

GitHub stars

1,035

Quality signals

OSS Criticality

0.49medium

Download trend

declining(-47.3%)

Health History

Dependency Tree

License Audit

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/pypi/h2