{"document":{"aggregate_severity":{"namespace":"https://access.redhat.com/security/updates/classification/","text":"Moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright © Red Hat, Inc. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"legal_disclaimer","text":"This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.","title":"Terms of Use"}],"publisher":{"category":"vendor","contact_details":"https://access.redhat.com/security/team/contact/","issuing_authority":"Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.","name":"Red Hat Product Security","namespace":"https://www.redhat.com"},"references":[{"category":"self","summary":"Canonical URL","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-113470.json"}],"title":"firefox: Firefox: Website spoofing via failure to block compromised intermediate certificates","tracking":{"current_release_date":"2026-10-21T19:43:09+00:00","generator":{"date":"2026-10-21T19:43:09+00:00","engine":{"name":"Red Hat SDEngine","version":"5.4.2"}},"id":"CVE-2026-113470","initial_release_date":"2026-10-20T12:58:14.250000+00:00","revision_history":[{"date":"2026-10-20T12:58:14.250000+00:00","number":"1","summary":"Initial version"},{"date":"2026-10-21T17:44:10+00:00","number":"2","summary":"Current version"},{"date":"2026-10-21T19:43:09+00:00","number":"3","summary":"Last generated version"}],"status":"final","version":"3"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"Red Hat Enterprise Linux 10","product":{"name":"Red Hat Enterprise Linux 10","product_id":"red_hat_enterprise_linux_10","product_identification_helper":{"cpe":"cpe:/o:redhat:enterprise_linux:10"}}}],"category":"product_family","name":"Red Hat Enterprise Linux 10"},{"branches":[{"category":"product_name","name":"Red Hat Enterprise Linux 7","product":{"name":"Red Hat Enterprise Linux 7","product_id":"red_hat_enterprise_linux_7","product_identification_helper":{"cpe":"cpe:/o:redhat:enterprise_linux:7"}}}],"category":"product_family","name":"Red Hat Enterprise Linux 7"},{"branches":[{"category":"product_name","name":"Red Hat Enterprise Linux 8","product":{"name":"Red Hat Enterprise Linux 8","product_id":"red_hat_enterprise_linux_8","product_identification_helper":{"cpe":"cpe:/o:redhat:enterprise_linux:8"}}}],"category":"product_family","name":"Red Hat Enterprise Linux 8"},{"branches":[{"category":"product_name","name":"Red Hat Enterprise Linux 9","product":{"name":"Red Hat Enterprise Linux 9","product_id":"red_hat_enterprise_linux_9","product_identification_helper":{"cpe":"cpe:/o:redhat:enterprise_linux:9"}}}],"category":"product_family","name":"Red Hat Enterprise Linux 9"},{"category":"product_version","name":"firefox","product":{"name":"firefox","product_id":"firefox","product_identification_helper":{"purl":"pkg:rpm/redhat/firefox"}}},{"category":"product_version","name":"firefox.src","product":{"name":"firefox.src","product_id":"firefox.src","product_identification_helper":{"purl":"pkg:rpm/redhat/firefox?arch=src"}}},{"category":"product_version","name":"rhel10/firefox-flatpak","product":{"name":"rhel10/firefox-flatpak","product_id":"rhel10/firefox-flatpak","product_identification_helper":{"purl":"pkg:oci/firefox-flatpak?repository_url=registry.redhat.io/rhel10/firefox-flatpak"}}},{"category":"product_version","name":"firefox-x11","product":{"name":"firefox-x11","product_id":"firefox-x11","product_identification_helper":{"purl":"pkg:rpm/redhat/firefox-x11"}}}],"category":"vendor","name":"Red Hat"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"firefox as a component of Red Hat Enterprise Linux 10","product_id":"red_hat_enterprise_linux_10:firefox"},"product_reference":"firefox","relates_to_product_reference":"red_hat_enterprise_linux_10"},{"category":"default_component_of","full_product_name":{"name":"firefox.src as a component of Red Hat Enterprise Linux 10","product_id":"red_hat_enterprise_linux_10:firefox.src"},"product_reference":"firefox.src","relates_to_product_reference":"red_hat_enterprise_linux_10"},{"category":"default_component_of","full_product_name":{"name":"rhel10/firefox-flatpak as a component of Red Hat Enterprise Linux 10","product_id":"red_hat_enterprise_linux_10:rhel10/firefox-flatpak"},"product_reference":"rhel10/firefox-flatpak","relates_to_product_reference":"red_hat_enterprise_linux_10"},{"category":"default_component_of","full_product_name":{"name":"firefox as a component of Red Hat Enterprise Linux 7","product_id":"red_hat_enterprise_linux_7:firefox"},"product_reference":"firefox","relates_to_product_reference":"red_hat_enterprise_linux_7"},{"category":"default_component_of","full_product_name":{"name":"firefox.src as a component of Red Hat Enterprise Linux 7","product_id":"red_hat_enterprise_linux_7:firefox.src"},"product_reference":"firefox.src","relates_to_product_reference":"red_hat_enterprise_linux_7"},{"category":"default_component_of","full_product_name":{"name":"firefox as a component of Red Hat Enterprise Linux 8","product_id":"red_hat_enterprise_linux_8:firefox"},"product_reference":"firefox","relates_to_product_reference":"red_hat_enterprise_linux_8"},{"category":"default_component_of","full_product_name":{"name":"firefox.src as a component of Red Hat Enterprise Linux 8","product_id":"red_hat_enterprise_linux_8:firefox.src"},"product_reference":"firefox.src","relates_to_product_reference":"red_hat_enterprise_linux_8"},{"category":"default_component_of","full_product_name":{"name":"firefox as a component of Red Hat Enterprise Linux 9","product_id":"red_hat_enterprise_linux_9:firefox"},"product_reference":"firefox","relates_to_product_reference":"red_hat_enterprise_linux_9"},{"category":"default_component_of","full_product_name":{"name":"firefox-x11 as a component of Red Hat Enterprise Linux 9","product_id":"red_hat_enterprise_linux_9:firefox-x11"},"product_reference":"firefox-x11","relates_to_product_reference":"red_hat_enterprise_linux_9"},{"category":"default_component_of","full_product_name":{"name":"firefox.src as a component of Red Hat Enterprise Linux 9","product_id":"red_hat_enterprise_linux_9:firefox.src"},"product_reference":"firefox.src","relates_to_product_reference":"red_hat_enterprise_linux_9"}]},"vulnerabilities":[{"cve":"CVE-2026-113470","cwe":{"id":"CWE-295","name":"Improper Certificate Validation"},"discovery_date":"2026-10-20T13:11:30.356055+00:00","ids":[{"system_name":"Red Hat Bugzilla ID","text":"2556173"}],"notes":[{"category":"description","text":"A flaw was found in Firefox. When dynamic updates for certificate revocation lists are disabled or unavailable, the browser relies on built-in data that fails to block certain compromised intermediate Certificate Authority (CA) certificates. A remote attacker could exploit this flaw using fraudulent certificates to impersonate trusted websites and intercept encrypted network traffic.","title":"Vulnerability description"},{"category":"summary","text":"firefox: Firefox: Website spoofing via failure to block compromised intermediate certificates","title":"Vulnerability summary"},{"category":"general","text":"The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.","title":"CVSS score applicability"}],"product_status":{"known_affected":["red_hat_enterprise_linux_10:firefox","red_hat_enterprise_linux_10:firefox.src","red_hat_enterprise_linux_10:rhel10/firefox-flatpak","red_hat_enterprise_linux_7:firefox","red_hat_enterprise_linux_7:firefox.src","red_hat_enterprise_linux_8:firefox","red_hat_enterprise_linux_8:firefox.src","red_hat_enterprise_linux_9:firefox","red_hat_enterprise_linux_9:firefox-x11","red_hat_enterprise_linux_9:firefox.src"]},"references":[{"category":"self","summary":"Canonical URL","url":"https://access.redhat.com/security/cve/CVE-2026-113470"},{"category":"external","summary":"RHBZ#2556173","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2556173"},{"category":"external","summary":"https://www.cve.org/CVERecord?id=CVE-2026-113470","url":"https://www.cve.org/CVERecord?id=CVE-2026-113470"},{"category":"external","summary":"https://nvd.nist.gov/vuln/detail/CVE-2026-113470","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113470"},{"category":"external","summary":"https://bugzilla.mozilla.org/show_bug.cgi?id=2083382","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2083382"},{"category":"external","summary":"https://www.mozilla.org/security/advisories/mfsa2026-111/","url":"https://www.mozilla.org/security/advisories/mfsa2026-111/"},{"category":"external","summary":"https://www.mozilla.org/security/advisories/mfsa2026-112/","url":"https://www.mozilla.org/security/advisories/mfsa2026-112/"},{"category":"external","summary":"https://www.mozilla.org/security/advisories/mfsa2026-113/","url":"https://www.mozilla.org/security/advisories/mfsa2026-113/"}],"release_date":"2026-10-20T12:58:14.250000+00:00","remediations":[{"category":"none_available","details":"Affected","product_ids":["red_hat_enterprise_linux_10:firefox","red_hat_enterprise_linux_10:firefox.src","red_hat_enterprise_linux_10:rhel10/firefox-flatpak","red_hat_enterprise_linux_7:firefox","red_hat_enterprise_linux_7:firefox.src","red_hat_enterprise_linux_8:firefox","red_hat_enterprise_linux_8:firefox.src","red_hat_enterprise_linux_9:firefox","red_hat_enterprise_linux_9:firefox-x11","red_hat_enterprise_linux_9:firefox.src"]}],"scores":[{"cvss_v3":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L","version":"3.1"},"products":["red_hat_enterprise_linux_10:firefox","red_hat_enterprise_linux_10:firefox.src","red_hat_enterprise_linux_10:rhel10/firefox-flatpak","red_hat_enterprise_linux_7:firefox","red_hat_enterprise_linux_7:firefox.src","red_hat_enterprise_linux_8:firefox","red_hat_enterprise_linux_8:firefox.src","red_hat_enterprise_linux_9:firefox","red_hat_enterprise_linux_9:firefox-x11","red_hat_enterprise_linux_9:firefox.src"]}],"threats":[{"category":"impact","details":"Moderate","product_ids":["red_hat_enterprise_linux_10:firefox","red_hat_enterprise_linux_10:firefox.src","red_hat_enterprise_linux_10:rhel10/firefox-flatpak","red_hat_enterprise_linux_7:firefox","red_hat_enterprise_linux_7:firefox.src","red_hat_enterprise_linux_8:firefox","red_hat_enterprise_linux_8:firefox.src","red_hat_enterprise_linux_9:firefox","red_hat_enterprise_linux_9:firefox-x11","red_hat_enterprise_linux_9:firefox.src"]}],"title":"firefox: Firefox: Website spoofing via failure to block compromised intermediate certificates"}]}