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Ruby 3.1 vulnerabilities

3 known CVEs affect the 3.1 line of Ruby.

9.8 max CVSSSupport ended 2025-03-26

Fixed in

3.1.23.1.3
Check your versionruby -v

CVEs affecting 3.1

CVE Title CVSS Exploited EPSS Published
CVE-2022-28738 A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2. If a victim at... 9.8 — 2022-05-09
CVE-2021-33621 The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting... 8.8 — 2022-11-18
CVE-2022-28739 There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.... 7.5 — 2022-05-09

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Data: CVE List (CVE® Program), NVD, CISA KEV, FIRST EPSS (see EPSS at https://www.first.org/epss), endoflife.date. Software list: awesome-selfhosted (CC BY-SA 3.0).