sinatra vulnerabilities and fixes
Recent CVEs affecting sinatra, with upgrade or downgrade steps. 2 tracked.
sinatra has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2025-10-10. Highest priority: CVE-2025-61921 (score 47/100).
- CVE-2025-61921 HIGH 7.5 UPGRADE Sinatra is a domain-specific language for creating web applications in Ruby
- CVE-2024-37116 MEDIUM 6.5 UPGRADE Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in s
FAQ
How do I fix sinatra vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is sinatra being exploited right now?
None of the tracked sinatra CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which sinatra CVE should I patch first?
CVE-2025-61921 currently ranks highest (47/100): Sinatra is a domain-specific language for creating web applications in Ruby.