Sinatra before 2.2.0 does not validate that the expanded path matches public_dir when serving static files.

Original description

The description as published by the source.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

Fix status by distribution

Fixed packages published by each distribution for this CVE

• Debian DEBIAN-CVE-2022-29970 ruby-sinatra Fixed in: 2.0.8.1-2+deb11u1
• Ubuntu UBUNTU-CVE-2022-29970 ruby-sinatra Fixed in: 1.4.7-3ubuntu0.1~esm2

References

• advisory github.com
• advisory nvd.nist.gov
• web github.com
• web lists.debian.org
• web lists.debian.org