DEBIAN-CVE-2026-121239: Debian/chromium vulnerability
Published Nov 3, 2026
·Updated
Information leak in Core in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain cross-origin data 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
Who is exposed to this issue?
Users of the Debian chromium package are exposed if it is based on Google Chrome versions earlier than 157.0.8103.38. Exploitation requires a user to load an attacker-crafted HTML page.
2
What could an attacker obtain?
A remote attacker could obtain cross-origin data, which is data that should normally be isolated from the attacker’s website by the browser’s same-origin protections.
3
How can I determine whether my browser is affected?
Check the version of the Chromium build installed from Debian. The issue affects builds prior to 157.0.8103.38; the supplied data does not identify the Debian package version containing the fix.