{"affected":[{"defaultStatus":"unknown","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"webkitgtk","product":"Red Hat Enterprise Linux 6","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"webkitgtk3","product":"Red Hat Enterprise Linux 7","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"webkitgtk4","product":"Red Hat Enterprise Linux 7","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"webkit2gtk3","product":"Red Hat Enterprise Linux 8","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"webkit2gtk3","product":"Red Hat Enterprise Linux 9","source":"CNA: redhat","vendor":"Red Hat","versions":[]}],"cveId":"CVE-2025-66286","cwes":["CWE-639"],"description":"An API design flaw in WebKitGTK and WPE WebKit allows untrusted web content to unexpectedly perform IP connections, DNS lookups, and HTTP requests. Applications expect to use the\nWebPage::send-request signal handler to approve or reject all network requests. However, certain types of HTTP requests bypass this signal handler.","epss":{"date":"2026-11-05","percentile":0.1424,"score":0.00233},"exploits":[],"kev":null,"metrics":[{"score":4.7,"severity":"medium","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","version":"3.1"},{"score":4.7,"severity":"medium","source":"NVD: secalert@redhat.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","version":"3.1"}],"modifiedAt":1793899039050,"publishedAt":1776947630184,"references":[{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2025-66286"},{"source":"CNA: redhat","tags":[],"url":"https://bugs.webkit.org/show_bug.cgi?id=259787"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2424652"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/security/cve/CVE-2025-66286"},{"source":"secalert@redhat.com","tags":[],"url":"https://bugs.webkit.org/show_bug.cgi?id=259787"},{"source":"secalert@redhat.com","tags":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2424652"}],"remediation":[],"revision":"2354fd243cccafddf534e24475e6207e8bac4618b15f0f1c67bf3d4a65d52b9d","sources":[{"modifiedAt":1793896604456,"name":"CNA: redhat","retrievedAt":1793898523940,"url":"https://www.cve.org/CVERecord?id=CVE-2025-66286"},{"modifiedAt":1793899039050,"name":"NVD","retrievedAt":1793902822268,"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66286"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793898530488,"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-66286"}],"ssvc":{"assessedAt":1776948502122,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Webkitgtk: authorization bypass through webpage::send-request signal handler","updatedAt":1793902822268}