{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-28T14:46:04.113","vulnerabilities":[{"cve":{"id":"CVE-2023-22795","sourceIdentifier":"support@hackerone.com","published":"2023-02-09T20:15:11.420","lastModified":"2024-11-21T07:45:26.440","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A regular expression based DoS vulnerability in Action Dispatch <6.1.7.1 and <7.0.4.1 related to the If-None-Match header. A specially crafted HTTP If-None-Match header can cause the regular expression engine to enter a state of catastrophic backtracking, when on a version of Ruby below 3.2.0. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability All users running an affected release should either upgrade or use one of the workarounds immediately."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"support@hackerone.com","type":"Secondary","description":[{"lang":"en","value":"CWE-400"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-1333"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.7.1","matchCriteriaId":"3A4B1AF3-B872-4699-9EFF-BD9B9822B5D7"},{"vulnerable":true,"criteria":"cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0.0","versionEndExcluding":"7.0.4.1","matchCriteriaId":"CDA4E147-AAD7-4EA9-BB6B-8358610FEE9A"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*","versionEndExcluding":"3.2.0","matchCriteriaId":"F841AE5D-60DD-4E3A-854A-9B7B906BF7E7"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","matchCriteriaId":"FA6FEEC2-9F11-4643-8827-749718254FED"}]}]}],"references":[{"url":"https://discuss.rubyonrails.org/t/cve-2023-22795-possible-redos-based-dos-vulnerability-in-action-dispatch/82118","source":"support@hackerone.com","tags":["Patch","Vendor Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20240202-0010/","source":"support@hackerone.com"},{"url":"https://www.debian.org/security/2023/dsa-5372","source":"support@hackerone.com","tags":["Third Party Advisory"]},{"url":"https://discuss.rubyonrails.org/t/cve-2023-22795-possible-redos-based-dos-vulnerability-in-action-dispatch/82118","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20240202-0010/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5372","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}