{"id":"UBUNTU-CVE-2024-26142","details":"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.","modified":"2026-05-20T16:16:40.028482311Z","published":"2024-02-27T16:15:00Z","upstream":["CVE-2024-26142"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-26142"},{"type":"REPORT","url":"https://github.com/rails/rails/security/advisories/GHSA-jjhx-jhvp-74wq"},{"type":"REPORT","url":"https://github.com/rails/rails/commit/b4d3bfb5ed8a5b5a90aad3a3b28860c7a931e272"},{"type":"REPORT","url":"https://github.com/rails/rails/commit/b4d3bfb5ed8a5b5a90aad3a3b28860c7a931e272"},{"type":"REPORT","url":"https://discuss.rubyonrails.org/t/possible-redos-vulnerability-in-accept-header-parsing-in-action-dispatch/84946"},{"type":"REPORT","url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2024-26142.yml"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-26142"}],"affected":[{"package":{"name":"rails","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/rails?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:4.1.10-1","2:4.2.5-1","2:4.2.5.1-1","2:4.2.5.2-2","2:4.2.6-1","2:4.2.6-1ubuntu0.1~esm1","2:4.2.6-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"2:4.2.6-1ubuntu0.1~esm2","binary_name":"rails"},{"binary_name":"ruby-actionmailer","binary_version":"2:4.2.6-1ubuntu0.1~esm2"},{"binary_version":"2:4.2.6-1ubuntu0.1~esm2","binary_name":"ruby-actionpack"},{"binary_name":"ruby-actionview","binary_version":"2:4.2.6-1ubuntu0.1~esm2"},{"binary_version":"2:4.2.6-1ubuntu0.1~esm2","binary_name":"ruby-activejob"},{"binary_name":"ruby-activemodel","binary_version":"2:4.2.6-1ubuntu0.1~esm2"},{"binary_name":"ruby-activerecord","binary_version":"2:4.2.6-1ubuntu0.1~esm2"},{"binary_name":"ruby-activesupport","binary_version":"2:4.2.6-1ubuntu0.1~esm2"},{"binary_name":"ruby-rails","binary_version":"2:4.2.6-1ubuntu0.1~esm2"},{"binary_name":"ruby-railties","binary_version":"2:4.2.6-1ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-26142.json"}},{"package":{"name":"rails","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/rails?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:4.2.9-2","2:4.2.9-4","2:4.2.10-0ubuntu4","2:4.2.10-0ubuntu4+esm1","2:4.2.10-0ubuntu4+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"rails","binary_version":"2:4.2.10-0ubuntu4+esm2"},{"binary_version":"2:4.2.10-0ubuntu4+esm2","binary_name":"ruby-actionmailer"},{"binary_name":"ruby-actionpack","binary_version":"2:4.2.10-0ubuntu4+esm2"},{"binary_name":"ruby-actionview","binary_version":"2:4.2.10-0ubuntu4+esm2"},{"binary_version":"2:4.2.10-0ubuntu4+esm2","binary_name":"ruby-activejob"},{"binary_version":"2:4.2.10-0ubuntu4+esm2","binary_name":"ruby-activemodel"},{"binary_version":"2:4.2.10-0ubuntu4+esm2","binary_name":"ruby-activerecord"},{"binary_name":"ruby-activesupport","binary_version":"2:4.2.10-0ubuntu4+esm2"},{"binary_name":"ruby-rails","binary_version":"2:4.2.10-0ubuntu4+esm2"},{"binary_name":"ruby-railties","binary_version":"2:4.2.10-0ubuntu4+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-26142.json"}},{"package":{"name":"rails","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/rails?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:5.2.2.1+dfsg-1ubuntu1","2:5.2.3+dfsg-3","2:5.2.3+dfsg-3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"rails","binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1"},{"binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1","binary_name":"ruby-actioncable"},{"binary_name":"ruby-actionmailer","binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1"},{"binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1","binary_name":"ruby-actionpack"},{"binary_name":"ruby-actionview","binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1"},{"binary_name":"ruby-activejob","binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1"},{"binary_name":"ruby-activemodel","binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1"},{"binary_name":"ruby-activerecord","binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1"},{"binary_name":"ruby-activestorage","binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1"},{"binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1","binary_name":"ruby-activesupport"},{"binary_name":"ruby-rails","binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1"},{"binary_name":"ruby-railties","binary_version":"2:5.2.3+dfsg-3ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-26142.json"}},{"package":{"name":"rails","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/rails?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:6.0.3.7+dfsg-2","2:6.1.4.1+dfsg-8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