CVE-2026-91709 is a vulnerability in Google Chrome
Published on September 15, 2026
Type confusion in ServiceWorker in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Weakness Type
What is an Object Type Confusion Vulnerability?
The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
CVE-2026-91709 has been classified to as an Object Type Confusion vulnerability or weakness.
Products Associated with CVE-2026-91709
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Affected Versions
Google Chrome:- Version 153.0.8010.47 and below 153.0.8010.47 is affected.