{"api_version":"1","generated_at":"2026-05-11T23:36:40+00:00","cve":"CVE-2026-44658","urls":{"html":"https://cve.report/CVE-2026-44658","api":"https://cve.report/api/cve/CVE-2026-44658.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-44658","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-44658"},"summary":{"title":"Zen Browser: RSS Live-Folder Item URLs Are Not Scheme-Restricted Before Trusted Tab Creation","description":"Zen is a firefox-based browser. Prior to 1.19.12b, RSS feed URLs entered by the user are validated to http: or https: in promptForFeedUrl, but item links inside the feed are not subject to the same restriction. The provider maps each RSS/Atom item link into item.url, filters only for presence and date, and returns the item list. The live-folder manager later creates pinned lazy tabs from these values with gBrowser.addTrustedTab(item.url, ...). 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Prior to 1.19.12b, RSS feed URLs entered by the user are validated to http: or https: in promptForFeedUrl, but item links inside the feed are not subject to the same restriction. The provider maps each RSS/Atom item link into item.url, filters only for presence and date, and returns the item list. The live-folder manager later creates pinned lazy tabs from these values with gBrowser.addTrustedTab(item.url, ...). This vulnerability is fixed in 1.19.12b.","Type":"Description","Title":"Zen Browser: RSS Live-Folder Item URLs Are Not Scheme-Restricted"}]}}}