{"api_version":"1","generated_at":"2026-04-25T02:29:48+00:00","cve":"CVE-2025-66286","urls":{"html":"https://cve.report/CVE-2025-66286","api":"https://cve.report/api/cve/CVE-2025-66286.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-66286","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-66286"},"summary":{"title":"Webkitgtk: authorization bypass through webpage::send-request signal handler","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.","state":"PUBLISHED","assigner":"redhat","published_at":"2026-04-23 13:16:11","updated_at":"2026-04-24 14:50:56"},"problem_types":["CWE-639","CWE-639 Authorization Bypass Through User-Controlled Key"],"metrics":[{"version":"3.1","source":"secalert@redhat.com","type":"Primary","score":"4.7","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"4.7","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","version":"3.1"}}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2025-66286","name":"https://access.redhat.com/security/cve/CVE-2025-66286","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://bugs.webkit.org/show_bug.cgi?id=259787","name":"https://bugs.webkit.org/show_bug.cgi?id=259787","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2424652","name":"https://bugzilla.redhat.com/show_bug.cgi?id=2424652","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-66286","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66286","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","version":"","platforms":[]}],"timeline":[{"source":"CNA","time":"2025-12-23T17:34:29.089Z","lang":"en","value":"Reported to Red Hat."},{"source":"CNA","time":"2026-04-23T12:15:39.032Z","lang":"en","value":"Made public."}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Red Hat would like to thank Albrecht Dreß for reporting this issue.","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2025","cve_id":"66286","cve":"CVE-2025-66286","epss":"0.000280000","percentile":"0.079330000","score_date":"2026-04-24","updated_at":"2026-04-25 00:14:35"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2025-66286","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-04-23T12:48:22.122580Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-04-23T12:48:57.468Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"webkitgtk","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"webkitgtk3","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"webkitgtk4","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"webkit2gtk3","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"webkit2gtk3","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}],"credits":[{"lang":"en","value":"Red Hat would like to thank Albrecht Dreß for reporting this issue."}],"datePublic":"2026-04-23T12:15:39.032Z","descriptions":[{"lang":"en","value":"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."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Moderate"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","description":"Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-23T12:41:25.356Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat"},"references":[{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2025-66286"},{"url":"https://bugs.webkit.org/show_bug.cgi?id=259787"},{"name":"RHBZ#2424652","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2424652"}],"timeline":[{"lang":"en","time":"2025-12-23T17:34:29.089Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-04-23T12:15:39.032Z","value":"Made public."}],"title":"Webkitgtk: authorization bypass through webpage::send-request signal handler","x_generator":{"engine":"cvelib 1.8.0"},"x_redhatCweChain":"CWE-639: Authorization Bypass Through User-Controlled Key"}},"cveMetadata":{"assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","cveId":"CVE-2025-66286","datePublished":"2026-04-23T12:33:50.184Z","dateReserved":"2025-11-26T19:02:26.116Z","dateUpdated":"2026-04-23T12:48:57.468Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-23 13:16:11","lastModifiedDate":"2026-04-24 14:50:56","problem_types":["CWE-639","CWE-639 Authorization Bypass Through User-Controlled Key"],"metrics":{"cvssMetricV31":[{"source":"secalert@redhat.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"66286","Ordinal":"1","Title":"Webkitgtk: authorization bypass through webpage::send-request si","CVE":"CVE-2025-66286","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"66286","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Webkitgtk: authorization bypass through webpage::send-request si"}]}}}