Live › vulnerability › CVE-2026-121107
Google Chrome versions before 157.0.8103.38 have an incorrect authorization check in BackgroundFetch. A remote attacker can use a crafted HTML page to bypass web origin policy.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-03 21:19 UTC. All times on this page are UTC.
Anyone running Google Chrome older than 157.0.8103.38 who visits a web page that could be crafted by an attacker. Managed fleets should check browser versions centrally. Users on the latest Chrome build are not affected.
No product ranges from the sources yet.
chrome://version.157.0.8103.38.157.0.8103.38 or later.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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)
This page as .md · .json · in your agent: get_signal("CVE-2026-121107")
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