CVE-2021-33621: Interpretation Conflict

November 18, 2022 (updated January 24, 2024)

The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object.

References

nvd.nist.gov/vuln/detail/CVE-2021-33621
www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/

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