Rails possible ReDoS vulnerability in Accept header parsing in Action Dispatch
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Rails is a web-application framework. Starting in version 7.1.0, there is a possible ReDoS vulnerability in the Accept header parsing routines of Action Dispatch. This vulnerability is patched in 7.1.3.1. Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected.
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.
No remediation guidance has been written for this CVE yet. What the record does show:
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
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