CVE-2026-44658

Published: May 11, 2026Modified: Jun 17, 2026Deferred

2.4

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N

Exploitability: 0.9 / Impact: 1.4

Source: security-advisories@github.com (Secondary)

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, ...). This vulnerability is fixed in 1.19.12b.

Related CWEs

CWE-20

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (1)

https://github.com/zen-browser/desktop/security/advisories/GHSA-cc9c-mmmf-c5j6

Source: security-advisories@github.com

Timeline

No history available yet.