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Strong Parameters Bypass in ActionPack\nThere is a strong parameters bypass vector in ActionPack.\n\nVersions Affected:  rails <= 6.0.3\nNot affected:       rails < 5.0.0\nFixed Versions:     rails >= 5.2.4.3, rails >= 6.0.3.1\n\nImpact\n------\nIn some cases user supplied information can be inadvertently leaked from\nStrong Parameters.  Specifically the return value of `each`, or `each_value`,\nor `each_pair` will return the underlying \"untrusted\" hash of data that was\nread from the parameters.  Applications that use this return value may be\ninadvertently use untrusted user input.\n\nImpacted code will look something like this:\n\n```\ndef update\n  # Attacker has included the parameter: `{ is_admin: true }`\n  User.update(clean_up_params)\nend\n\ndef clean_up_params\n   params.each { |k, v|  SomeModel.check(v) if k == :name }\nend\n```\n\nNote the mistaken use of `each` in the `clean_up_params` method in the above\nexample.\n\nWorkarounds\n-----------\nDo not use the return values of `each`, `each_value`, or `each_pair` in your\napplication.","references":[{"reference_url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00089.html","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00089.html"},{"reference_url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00093.html","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00093.html"},{"reference_url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00107.html","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00107.html"},{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8164.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8164.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-8164","reference_id":"","reference_type":"","scores":[{"value":"0.07389","scoring_system":"epss","scoring_elements":"0.91842","published_at":"2026-05-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-8164"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15169","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15169"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8162","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8162"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8164","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8164"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8165","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8165"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8166","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8166"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8167","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8167"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/rails/rails","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/rails/rails"},{"reference_url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2020-8164.yml","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2020-8164.yml"},{"reference_url":"https://groups.google.com/forum/#!topic/rubyonrails-security/f6ioe4sdpbY","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":""},{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://groups.google.com/forum/#!topic/rubyonrails-security/f6ioe4sdpbY"},{"reference_url":"https://groups.google.com/g/rubyonrails-security/c/f6ioe4sdpbY","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://groups.google.com/g/rubyonrails-security/c/f6ioe4sdpbY"},{"reference_url":"https://hackerone.com/reports/292797","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://hackerone.com/reports/292797"},{"reference_url":"https://lists.debian.org/debian-lts-announce/2020/06/msg00022.html","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.debian.org/debian-lts-announce/2020/06/msg00022.html"},{"reference_url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8164","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8164"},{"reference_url":"https://www.debian.org/security/2020/dsa-4766","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.debian.org/security/2020/dsa-4766"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1842634","reference_id":"1842634","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1842634"},{"reference_url":"https://github.com/advisories/GHSA-8727-m6gj-mc37","reference_id":"GHSA-8727-m6gj-mc37","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-8727-m6gj-mc37"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:1313","reference_id":"RHSA-2021:1313","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:1313"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/359852?format=json","purl":"pkg:deb/debian/rails@2:5.2.4.3%2Bdfsg-1?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:5.2.4.3%252Bdfsg-1%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/359826?format=json","purl":"pkg:deb/debian/rails@2:6.0.3.7%2Bdfsg-2%2Bdeb11u2?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2ghz-4sfg-2feh"},{"vulnerability":"VCID-5bzk-rhe1-fqdc"},{"vulnerability":"VCID-7zz5-k99f-v3f6"},{"vulnerability":"VCID-f48b-ashx-53bg"},{"vulnerability":"VCID-gbvf-y28h-kqax"},{"vulnerability":"VCID-hdsb-jx4g-fqf6"},{"vulnerability":"VCID-nwk7-sujd-nkc1"},{"vulnerability":"VCID-urpb-uk1z-vqga"},{"vulnerability":"VCID-v3mu-95kt-ufc6"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:6.0.3.7%252Bdfsg-2%252Bdeb11u2%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/359824?format=json","purl":"pkg:deb/debian/rails@2:6.1.7.10%2Bdfsg-1~deb12u2?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2ghz-4sfg-2feh"},{"vulnerability":"VCID-5bzk-rhe1-fqdc"},{"vulnerability":"VCID-7zz5-k99f-v3f6"},{"vulnerability":"VCID-f48b-ashx-53bg"},{"vulnerability":"VCID-gbvf-y28h-kqax"},{"vulnerability":"VCID-hdsb-jx4g-fqf6"},{"vulnerability":"VCID-nwk7-sujd-nkc1"},{"vulnerability":"VCID-urpb-uk1z-vqga"},{"vulnerability":"VCID-v3mu-95kt-ufc6"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:6.1.7.10%252Bdfsg-1~deb12u2%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/359828?format=json","purl":"pkg:deb/debian/rails@2:7.2.2.2%2Bdfsg-2~deb13u1?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2ghz-4sfg-2feh"},{"vulnerability":"VCID-5bzk-rhe1-fqdc"},{"vulnerability":"VCID-7zz5-k99f-v3f6"},{"vulnerability":"VCID-f48b-ashx-53bg"},{"vulnerability":"VCID-gbvf-y28h-kqax"},{"vulnerability":"VCID-hdsb-jx4g-fqf6"},{"vulnerability":"VCID-nwk7-sujd-nkc1"},{"vulnerability":"VCID-urpb-uk1z-vqga"},{"vulnerability":"VCID-v3mu-95kt-ufc6"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:7.2.2.2%252Bdfsg-2~deb13u1%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/359827?format=json","purl":"pkg:deb/debian/rails@2:7.2.3.1%2Bdfsg-1?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:7.2.3.1%252Bdfsg-1%3Fdistro=trixie"}],"aliases":["CVE-2020-8164","GHSA-8727-m6gj-mc37"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-6z21-pd9d-pfgk"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/41421?format=json","vulnerability_id":"VCID-tjcm-cvtx-jbgt","summary":"ActiveSupport potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore\nIn ActiveSupport, there is potentially unexpected behaviour in the MemCacheStore and RedisCacheStore where, when\nuntrusted user input is written to the cache store using the `raw: true` parameter, re-reading the result\nfrom the cache can evaluate the user input as a Marshalled object instead of plain text. Vulnerable code looks like:\n\n```\ndata = cache.fetch(\"demo\", raw: true) { untrusted_string }\n```\nVersions Affected:  rails < 5.2.5, rails < 6.0.4\nNot affected:       Applications not using MemCacheStore or RedisCacheStore. Applications that do not use the `raw` option when storing untrusted user input.\nFixed Versions:     rails >= 5.2.4.3, rails >= 6.0.3.1\n  \nImpact\n------\nUnmarshalling of untrusted user input can have impact up to and including RCE. At a minimum,\nthis vulnerability allows an attacker to inject untrusted Ruby objects into a web application.\nIn addition to upgrading to the latest versions of Rails, developers should ensure that whenever\nthey are calling `Rails.cache.fetch` they are using consistent values of the `raw` parameter for both\nreading and writing, especially in the case of the RedisCacheStore which does not, prior to these changes,\ndetect if data was serialized using the raw option upon deserialization.\n\nWorkarounds\n-----------\nIt is recommended that application developers apply the suggested patch or upgrade to the latest release as\nsoon as possible. If this is not possible, we recommend ensuring that all user-provided strings cached using\nthe `raw` argument should be double-checked to ensure that they conform to the expected format.","references":[{"reference_url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.html","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.html"},{"reference_url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.html","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.html"},{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8165.json","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8165.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-8165","reference_id":"","reference_type":"","scores":[{"value":"0.90128","scoring_system":"epss","scoring_elements":"0.99603","published_at":"2026-05-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-8165"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15169","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15169"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8162","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8162"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8164","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8164"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8165","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8165"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8166","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8166"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8167","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8167"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2020-8165.yml","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2020-8165.yml"},{"reference_url":"https://groups.google.com/forum/#!topic/rubyonrails-security/bv6fW4S0Y1c","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3","scoring_elements":""},{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://groups.google.com/forum/#!topic/rubyonrails-security/bv6fW4S0Y1c"},{"reference_url":"https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1c","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1c"},{"reference_url":"https://hackerone.com/reports/413388","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://hackerone.com/reports/413388"},{"reference_url":"https://lists.debian.org/debian-lts-announce/2020/06/msg00022.html","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.debian.org/debian-lts-announce/2020/06/msg00022.html"},{"reference_url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8165","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8165"},{"reference_url":"https://security.netapp.com/advisory/ntap-20250509-0002","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://security.netapp.com/advisory/ntap-20250509-0002"},{"reference_url":"https://weblog.rubyonrails.org/2020/5/18/Rails-5-2-4-3-and-6-0-3-1-have-been-released","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://weblog.rubyonrails.org/2020/5/18/Rails-5-2-4-3-and-6-0-3-1-have-been-released"},{"reference_url":"https://www.debian.org/security/2020/dsa-4766","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.debian.org/security/2020/dsa-4766"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1843072","reference_id":"1843072","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1843072"},{"reference_url":"https://github.com/advisories/GHSA-2p68-f74v-9wc6","reference_id":"GHSA-2p68-f74v-9wc6","reference_type":"","scores":[{"value":"CRITICAL","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-2p68-f74v-9wc6"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:1313","reference_id":"RHSA-2021:1313","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:1313"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/359852?format=json","purl":"pkg:deb/debian/rails@2:5.2.4.3%2Bdfsg-1?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:5.2.4.3%252Bdfsg-1%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/359826?format=json","purl":"pkg:deb/debian/rails@2:6.0.3.7%2Bdfsg-2%2Bdeb11u2?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2ghz-4sfg-2feh"},{"vulnerability":"VCID-5bzk-rhe1-fqdc"},{"vulnerability":"VCID-7zz5-k99f-v3f6"},{"vulnerability":"VCID-f48b-ashx-53bg"},{"vulnerability":"VCID-gbvf-y28h-kqax"},{"vulnerability":"VCID-hdsb-jx4g-fqf6"},{"vulnerability":"VCID-nwk7-sujd-nkc1"},{"vulnerability":"VCID-urpb-uk1z-vqga"},{"vulnerability":"VCID-v3mu-95kt-ufc6"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:6.0.3.7%252Bdfsg-2%252Bdeb11u2%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/359824?format=json","purl":"pkg:deb/debian/rails@2:6.1.7.10%2Bdfsg-1~deb12u2?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2ghz-4sfg-2feh"},{"vulnerability":"VCID-5bzk-rhe1-fqdc"},{"vulnerability":"VCID-7zz5-k99f-v3f6"},{"vulnerability":"VCID-f48b-ashx-53bg"},{"vulnerability":"VCID-gbvf-y28h-kqax"},{"vulnerability":"VCID-hdsb-jx4g-fqf6"},{"vulnerability":"VCID-nwk7-sujd-nkc1"},{"vulnerability":"VCID-urpb-uk1z-vqga"},{"vulnerability":"VCID-v3mu-95kt-ufc6"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:6.1.7.10%252Bdfsg-1~deb12u2%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/359828?format=json","purl":"pkg:deb/debian/rails@2:7.2.2.2%2Bdfsg-2~deb13u1?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2ghz-4sfg-2feh"},{"vulnerability":"VCID-5bzk-rhe1-fqdc"},{"vulnerability":"VCID-7zz5-k99f-v3f6"},{"vulnerability":"VCID-f48b-ashx-53bg"},{"vulnerability":"VCID-gbvf-y28h-kqax"},{"vulnerability":"VCID-hdsb-jx4g-fqf6"},{"vulnerability":"VCID-nwk7-sujd-nkc1"},{"vulnerability":"VCID-urpb-uk1z-vqga"},{"vulnerability":"VCID-v3mu-95kt-ufc6"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:7.2.2.2%252Bdfsg-2~deb13u1%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/359827?format=json","purl":"pkg:deb/debian/rails@2:7.2.3.1%2Bdfsg-1?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/rails@2:7.2.3.1%252Bdfsg-1%3Fdistro=trixie"}],"aliases":["CVE-2020-8165","GHSA-2p68-f74v-9wc6"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-tjcm-cvtx-jbgt"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/41094?format=json","vulnerability_id":"VCID-wm9p-z4n1-t7cs","summary":"CSRF Vulnerability in rails-ujs\nThere is a vulnerability in rails-ujs that allows attackers to send CSRF tokens to wrong domains.\n\nVersions Affected:  rails <= 6.0.3\nNot affected:       Applications which don't use rails-ujs.\nFixed Versions:     rails >= 5.2.4.3, rails >= 6.0.3.1\n\nImpact\n------\n\nThis is a regression of CVE-2015-1840.\n\nIn the scenario where an attacker might be able to control the href attribute of an anchor tag or the action attribute of a form tag that will trigger a POST action, the attacker can set the href or action to a cross-origin URL, and the CSRF token will be sent.\n\nWorkarounds\n-----------\n\nTo work around this problem, change code that allows users to control the href attribute of an anchor tag or the action attribute of a form tag to filter the user parameters.\n\nFor example, code like this:\n\n    link_to params\n\nto code like this:\n\n    link_to filtered_params\n\n    def filtered_params\n      # Filter just the parameters that you trust\n    end","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8167.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8167.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-8167","reference_id":"","reference_type":"","scores":[{"value":"0.00427","scoring_system":"epss","scoring_elements":"0.62685","published_at":"2026-05-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-8167"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15169","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15169"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8162","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8162"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8164","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8164"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8165","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8165"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8166","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8166"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8167","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8167"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionview/CVE-2020-8167.yml","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionview/CVE-2020-8167.yml"},{"reference_url":"https://groups.google.com/forum/#!topic/rubyonrails-security/x9DixQDG9a0","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3","scoring_elements":""},{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://groups.google.com/forum/#!topic/rubyonrails-security/x9DixQDG9a0"},{"reference_url":"https://groups.google.com/g/rubyonrails-security/c/x9DixQDG9a0","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://groups.google.com/g/rubyonrails-security/c/x9DixQDG9a0"},{"reference_url":"https://hackerone.com/reports/189878","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://hackerone.com/reports/189878"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8167","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8167"},{"reference_url":"https://www.debian.org/security/2020/dsa-4766","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.debian.org/security/2020/dsa-4766"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1843084","reference_id":"1843084","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1843084"},{"reference_url":"https://github.com/advisories/GHSA-xq5j-gw7f-jgj8","reference_id":"GHSA-xq5j-gw7f-jgj8","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-xq5j-gw7f-jgj8"},{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