CVE-2026-44658

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...

CVE-2026-44659

Zen is a firefox-based browser. Prior to 1.19.12b, the ZEN Browser incorrectly truncates long hostnames in the address bar and shows only the attacker-controlled prefix of the subdomain, hiding the actual registrable domain eTLD+1. As a result, an attacker can craft extremely long malicious...

CVE-2026-44658

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...

CVE-2026-44659

Zen is a firefox-based browser. Prior to 1.19.12b, the ZEN Browser incorrectly truncates long hostnames in the address bar and shows only the attacker-controlled prefix of the subdomain, hiding the actual registrable domain eTLD+1. As a result, an attacker can craft extremely long malicious...

CVE-2026-44659 Zen Browser Mac - Address Bar Spoofing via Long Subdomain

Zen is a firefox-based browser. Prior to 1.19.12b, the ZEN Browser incorrectly truncates long hostnames in the address bar and shows only the attacker-controlled prefix of the subdomain, hiding the actual registrable domain eTLD+1. As a result, an attacker can craft extremely long malicious...

EUVD-2026-29133

Zen is a firefox-based browser. Prior to 1.19.12b, the ZEN Browser incorrectly truncates long hostnames in the address bar and shows only the attacker-controlled prefix of the subdomain, hiding the actual registrable domain eTLD+1. As a result, an attacker can craft extremely long malicious...

CVE-2026-44659

Zen is a firefox-based browser. Prior to 1.19.12b, the ZEN Browser incorrectly truncates long hostnames in the address bar and shows only the attacker-controlled prefix of the subdomain, hiding the actual registrable domain eTLD+1. As a result, an attacker can craft extremely long malicious...

CVE-2026-44659 Zen Browser Mac - Address Bar Spoofing via Long Subdomain

Zen is a firefox-based browser. Prior to 1.19.12b, the ZEN Browser incorrectly truncates long hostnames in the address bar and shows only the attacker-controlled prefix of the subdomain, hiding the actual registrable domain eTLD+1. As a result, an attacker can craft extremely long malicious...

CVE-2026-44659

CVE-2026-44659 – Zen Browser Mac : Zen is a Firefox-based browser. Before version 1.19.12b, the address bar truncates long hostnames, displaying only the attacker-controlled prefix of the subdomain and hiding the registrable domain (eTLD+1). This can enable attackers to craft extremely long subdo...

CVE-2026-44658 Zen Browser: RSS Live-Folder Item URLs Are Not Scheme-Restricted Before Trusted Tab Creation

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...

EUVD-2026-29132

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...

CVE-2026-44658 Zen Browser: RSS Live-Folder Item URLs Are Not Scheme-Restricted Before Trusted Tab Creation

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...

CVE-2026-44658

CVE-2026-44658 (Zen Browser) : Zen Browser is a Firefox-based browser. The issue arises when RSS/Atom item links parsed from feeds are mapped to item.url without the same http/https scheme restriction applied in promptForFeedUrl; these links are then used by the live-folder manager to create pinn...