Live › vulnerability › CVE-2026-121170
Improper resource control in the WebCodecs API in Google Chrome before 157.0.8103.38 lets a remote attacker bypass the web origin policy using a crafted HTML page. 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.
Any Chrome install before 157.0.8103.38 is exposed when a user opens a crafted HTML page. Managed or enterprise Chrome fleets should be checked against the same version threshold. Chromium-based browsers that have not yet taken the fix are also a concern, but the sources do not say which ones.
No product ranges from the sources yet.
google-chrome --version on Linux.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.
Improper resource control in WebCodecs 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: Medium)
This page as .md · .json · in your agent: get_signal("CVE-2026-121170")
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