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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AI
RubyRuby| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| rack | rubygems | >= 3.0.0, < 3.0.9.1 | 3.0.9.1 |
| rack | rubygems | >= 0.4, < 2.2.8.1 | 2.2.8.1 |
Miggo AIRoot Cause AnalysisThe vulnerability stems from the SPLIT_PATTERN regex (%r{\s*[;,]\s*}) used in MediaType class methods. Both type() and params() methods utilize this regex for splitting operations. The regex's \s* quantifiers on both sides of [;,] create a 2nd degree polynomial ReDoS vulnerability when processing inputs with long whitespace prefixes. The commit patching this vulnerability specifically modifies these two methods to use a simpler regex and handle whitespace stripping manually, confirming their involvement in the vulnerability.
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