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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AI
RubyRuby| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| actionpack | rubygems | >= 7.1.0, < 7.1.3.1 | 7.1.3.1 |
Miggo AIRoot Cause AnalysisThe vulnerability stems from the PARAMETER_SEPARATOR_REGEXP regex pattern in the MIME type parsing logic. The original regex (/\s*;\sq="?/) contained a \s quantifier that permitted unlimited whitespace before semicolons. This could be exploited by crafted Accept headers with excessive whitespace to trigger ReDoS. The patch removes the leading \s* and adds .strip to mitigate this. The parse method in MimeType directly handles Accept header parsing and uses this regex, making it the clear vulnerable function.
KEV Misses 88% of Exploited CVEs- Get the report