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Rack's multipart header parsing allows Denial of Service via escape-heavy quoted parameters

🗓️ 02 Apr 2026 00:00:00Reported by RubySecType 
rubygems
 rubygems
🔗 rubysec.com👁 27 Views

Rack multipart parser can cause a denial of service via escape-heavy quoted parameters, causing high CPU usage.

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Vulners
Node
OR
rubyrackRange3.1.0–3.1.21
rubyrackRange≤3.2.6

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02 Apr 2026 00:00Current
7.2High risk
Vulners AI Score7.2
CVSS 3.17.5
EPSS0.00475
SSVC
27