DEBIAN-CVE-2026-121120: Input Validation
Published Nov 3, 2026
·Updated
Improper input validation in Prerender in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
Affected Software
3 affected components
debian/chromium*
debian/chromium*
debian/chromium*
Event History
Nov 3, 2026
CVE Published
via OSV·09:17 PM
Data Sourced
via OSV·09:17 PM
DescriptionAffected Software
Frequently Asked Questions
1
What must an attacker achieve before this issue can be exploited?
The attacker must first compromise the Chromium renderer process. The vulnerability is then exploitable through a crafted HTML page to bypass web origin policy.
2
Which Debian package is identified as affected, and what fixed version is stated?
The affected software is Debian's chromium package. The issue affects Google Chrome versions prior to 157.0.8103.38.