None 0.0Published Jul 9, 2026

CVE-2026-57501Zen is a firefox-based browser.

Updated under an hour ago (2026-10-19 07:23 UTC)

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Exploited in the last 30 days

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.

CVSS: 0.0 NONE (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:N
Weakness (CWE): CWE-266
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Awaiting Analysis
Record last updated: Jul 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

No affected products are listed yet.

References

https://github.com/zen-browser/desktop/commit/44f7616238208200547c7df500d945752d7b6379
https://github.com/zen-browser/desktop/releases/tag/1.21.5b
https://github.com/zen-browser/desktop/security/advisories/GHSA-vpvg-hp3v-rm5q

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.