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Rails Active Support has a possible ReDoS vulnerability in number_to_delimited

🗓️ 23 Mar 2026 20:52:40Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 3 Views

Rails Active Support ReDoS in number_to_delimited due to a gsub! regex causing quadratic time on long numbers; fixes released.

Related
Detection
Refs
Vulners
Node
OR
activesupport_projectactivesupportRange8.0.0.beta18.0.4.1rubygems
OR
activesupport_projectactivesupportRange8.1.0.beta18.1.2.1rubygems

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13 May 2026 16:15Current
5Medium risk
Vulners AI Score5
CVSS 3.15.3
CVSS 46.9
EPSS0.00021
SSVC
3