CVE-2026-57501 (GCVE-0-2026-57501)

Vulnerability from cvelistv5 – Published: 2026-07-09 22:27 – Updated: 2026-07-10 20:59
VLAI
Title
Zen: Context-menu "Open link in glance" / "Split link in new tab" loads a page-controlled link with the System principal, bypassing the web-content scheme restriction
Summary
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.
Severity
0 (None)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 20:46 UTC
CWE
  • CWE-266 - Incorrect Privilege Assignment
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7745 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
zen-browser desktop Affected: < 1.21.5b
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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