zlib has no known vulnerabilities on the latest version (3.2.3). DepScope rates its health at 72/100 (moderate risk).

What is the latest version of zlib?

The latest version of zlib is 3.2.3, released 2026-03-05.

Does zlib have known vulnerabilities?

No known vulnerabilities on the latest version of zlib.

No, zlib is actively maintained. Latest release: 3.2.3 (2026-03-05).

Popular alternatives to zlib in RubyGems include: jmespath, netrc, thread_safe, crass, tzinfo.

rubygemsv3.2.3

Ruby interface for the zlib compression/decompression library

License Ruby16 versions0 deps1,072,916 weekly dl

/ 100

Health

safe to use

[email protected] is safe to use (health: 72/100)

Health breakdown0 – 100

20/25

maintenance

17/20

popularity

25/25

security

9/15

maturity

1/15

community

Vulnerabilities

none known

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/rubygems/zlib