Live › vulnerability › CVE-2026-121250
A use-after-free bug in Chrome's Extensions component can be triggered by a crafted Chrome extension that a victim is tricked into installing. A successful attacker could potentially run code outside Chrome's sandbox.
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, including desktop installs on any platform the sources cover. Exposure depends on a user being socially engineered into installing a crafted extension, so teams can focus on managed browser fleets and developer machines. Users who cannot update Chrome should not rely on extension restrictions alone.
No product ranges from the sources yet.
chrome://settings/help and compare it to 157.0.8103.38chrome://extensions for anything unfamiliar157.0.8103.38 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Use after free in Extensions in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted Chrome extension. (Chromium security severity: High)
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