Live › vulnerability › CVE-2026-121161
A flaw in the BackgroundFetch feature of Google Chrome lets a crafted HTML page read cross-origin data it should not reach. Chromium rates it Medium severity.
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 before 157.0.8103.38 who visits a web page that could be crafted by an attacker. Managed or enterprise Chrome fleets should check their versions. Other Chromium-based browsers may carry the same flaw depending on their own update schedules, which the sources do not cover.
No product ranges from the sources yet.
chrome://version157.0.8103.38157.0.8103.38 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Information leak in BackgroundFetch 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)
This page as .md · .json · in your agent: get_signal("CVE-2026-121161")
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