[sinatra] Sinatra Path Traversal vulnerability

An issue was discovered in rack-protection/lib/rack/protection/path_traversal.rb in Sinatra 2.x before 2.0.1 on Windows. Path traversal is possible via backslash characters.

References

• https://nvd.nist.gov/vuln/detail/CVE-2018-7212
• https://github.com/sinatra/sinatra/pull/1379
• https://github.com/sinatra/sinatra/commit/6ad721abcfe36334108dcdd05d046c361e1b7a9c
• https://github.com/advisories/GHSA-h29f-7f56-j8wh