CVE-2018-11627

CVE-2018-11627 affects the Sinatra Ruby gem (pre-2.0.2) with an XSS in the 400 Bad Request page triggered by a params parser exception. Fedora/RH advisories (e.g., RHSA-2019:0212, RHSA-2019:0315) document fixes and package updates for rubygem-sinatra across affected Fedora/RHEL releases; OpenVAS/...

CVE-2022-29970

CVE-2022-29970 affects the Ruby web framework Sinatra (before 2.2.0). The issue is a path traversal vulnerability where expanded paths are not validated against the public_dir when serving static files, potentially allowing an attacker to view arbitrary files via crafted URLs containing dot-dot s...

CVE-2022-45442

Sinatra (Ruby) suffers a reflected file download (RFD) vulnerability where a response’s Content-Disposition header is derived from user-supplied input. Affected versions are 2.0.x before 2.2.3 and 3.0.x before 3.0.4; patches exist in 2.2.3 and 3.0.4. Remediation is to upgrade to those fixed relea...

CVE-2018-7212

CVE-2018-7212 (Sinatra/Rack-Protection) affects Sinatra 2.x on Windows prior to 2.0.1. The issue resides in rack-protection/lib/rack/protection/path_traversal.rb, enabling path traversal through backslash characters. Impact is directory/file access on the host system where Windows path separators...

CVE-2025-61921

CVE-2025-61921 affects Sinatra up to version 4.1.x (pre-4.2.0), where parsing of If-Match and If-None-Match headers during response construction with etag can consume excessive time, enabling a possible DoS. The issue is tied to the header parsing component and impacts applications using the etag...