CVE-2022-29970 (sinatra): sinatra does not validate expanded path matches

CVE: CVE-2022-29970 ( NVD )
GHSA: GHSA-qp49-3pvw-x4m5
Vendor Advisory: https://github.com/sinatra/sinatra/pull/1683

May 3rd, 2022

sinatra does not validate expanded path matches

Published: May 03, 2022

CVSS v3.x: 7.5 (High)

CVSS v2.0: 5.0 (Medium)

>= 2.2.0

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