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Sinatra before 2.2.0 does not validate that the expanded path matches public_dir when serving static files.
Sinatra before 2.2.0 does not validate that the expanded path matches public_dir when serving static files. This vulnerability involves weaknesses in
This high-severity vulnerability could allow attackers to gain unauthorized access, execute arbitrary code, or compromise data integrity. Prompt remediation is strongly recommended.
Probability of exploitation in the next 30 days · more likely than 81.5% of all CVEs.
Isolate affected systems from untrusted networks until patching is complete
Implement enhanced monitoring for exploitation attempts and unusual behavior