CVE-2026-57501

The record

Zen is a firefox-based browser. Prior to 1.21.5b, Zen's glance and split-view context-menu actions, Open link in glance and Split link in new tab, load a page-controlled link URL with the System principal instead of the originating page's principal, allowing a malicious web page to place a link to a file URL that can load with System privileges when opened through either context-menu item and bypass the content-to-file security check that blocks an ordinary click. This issue is fixed in version 1.21.5b.

Affected packages

Related vulnerabilities

• CVE-2026-63349 AnyIO is a high level asynchronous concurrency and networking framework that works on top… CWE-266
• CVE-2026-62106 Subscriber Privilege Escalation in SMS Alert Order Notifications <= 3.9.9 versions. CWE-266
• CVE-2026-62102 Subscriber Privilege Escalation in Gato GraphQL <= 19.2.3 versions. CWE-266
• CVE-2026-8303 Incorrect privilege assignment vulnerability in TUBITAK BILGEM Software Technologies… CWE-266
• CVE-2026-81805 Unauthenticated Privilege Escalation in SiteSkite <= 2.1.5 versions. CWE-266
• CVE-2026-15140 A privilege-escalation issue in the Portworx Operator when deployed on Red Hat OpenShift… CWE-266
• CVE-2026-86804 A vulnerability was identified in seakee CPA-Manager-Plus up to 1.11.10. CWE-266
• CVE-2026-77654 Improper Privilege Management vulnerability in Horizon Security Analyzer (formerly… CWE-266