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

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...

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

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...

CVE-2026-41431

Zen Browser ships a MAR updater (org.mozilla.updater) with signature verification removed, leaving MAR files unsigned and the updater without verification code. Prior to version 1.19.9b, this enables arbitrary unsigned updates if the update server or GitHub release pipeline is compromised. The is...

CVE-2026-41431 Zen Browser MAR updater ships with signature verification removed — unsigned updates accepted

Zen is a firefox-based browser. Prior to 1.19.9b, Zen Browser ships a Mozilla Application Resource MAR updater org.mozilla.updater that has had all MAR signature verification stripped from the Firefox codebase it was forked from. The MAR files served to users contain zero cryptographic signatures...

CVE-2026-41431

Zen is a firefox-based browser. Prior to 1.19.9b, Zen Browser ships a Mozilla Application Resource MAR updater org.mozilla.updater that has had all MAR signature verification stripped from the Firefox codebase it was forked from. The MAR files served to users contain zero cryptographic signatures...

CVE-2026-41431 Zen Browser MAR updater ships with signature verification removed — unsigned updates accepted

Zen is a firefox-based browser. Prior to 1.19.9b, Zen Browser ships a Mozilla Application Resource MAR updater org.mozilla.updater that has had all MAR signature verification stripped from the Firefox codebase it was forked from. The MAR files served to users contain zero cryptographic signatures...

EUVD-2026-29119

Zen is a firefox-based browser. Prior to 1.19.9b, Zen Browser ships a Mozilla Application Resource MAR updater org.mozilla.updater that has had all MAR signature verification stripped from the Firefox codebase it was forked from. The MAR files served to users contain zero cryptographic signatures...

Zen 输入验证错误漏洞

Zen is an open-source productivity browser based on Firefox. Versions of Zen prior to 1.19.12b contained a vulnerability related to input validation errors. This vulnerability stemmed from project links in RSS subscriptions not being restricted by http or https, which could lead to security risks...

Zen 安全漏洞

Zen is an open-source productivity browser based on Firefox. Versions of Zen prior to 1.19.12b contain security vulnerabilities. These vulnerabilities arise from the address bar incorrectly truncating long hostnames and displaying only the subdomain prefix controlled by the attacker, which may le...

Zen 数据伪造问题漏洞

Zen is an open-source productivity browser based on Firefox. Versions of Zen prior to 1.19.9b contained a data manipulation vulnerability. This vulnerability stemmed from the removal of all MAR signature verifications from the Firefox code base, resulting in MAR files containing zero encrypted...

PT-2026-39659

Zen is a firefox-based browser. Prior to 1.19.9b, Zen Browser ships a Mozilla Application Resource MAR updater org.mozilla.updater that has had all MAR signature verification stripped from the Firefox codebase it was forked from. The MAR files served to users contain zero cryptographic signatures...