DEBIAN-CVE-2026-121107: Debian/chromium vulnerability
Published Nov 3, 2026
·Updated
Incorrect authorization in BackgroundFetch in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)
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 would an attacker need to exploit this issue?
An attacker would need to get a victim to load a crafted HTML page. The issue is remotely exploitable and involves bypassing the web origin policy through BackgroundFetch.
2
Which Chromium versions are affected?
Google Chrome versions prior to 157.0.8103.38 are affected according to the provided advisory. The data identifies the affected Debian package as debian/chromium but does not provide Debian package version details.
3
How severe is this vulnerability?
Chromium rates this issue as High severity. No numeric severity score is provided.