CVE-2026-9116: Insufficient policy enforcement in ServiceWorker
Chromium: CVE-2026-9116 Insufficient policy enforcement in ServiceWorker
Other sources
Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
— NVD
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 148.0.7778.178 - Upgrade
Upgrade
Chromiumto a version that resolves this vulnerability.Fixed in 148.0.7778.179
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-9116?
CVE-2026-9116 has a severity score of 4.3, classified as medium according to the CVSS 3.1 framework.
How do I fix CVE-2026-9116?
To fix CVE-2026-9116, update Google Chrome or Microsoft Edge to version 148.0.7778.179 or later.
What kind of data can be leaked due to CVE-2026-9116?
CVE-2026-9116 allows a remote attacker to leak cross-origin data through a specially crafted HTML page.
Which browsers are affected by CVE-2026-9116?
CVE-2026-9116 affects Google Chrome and Microsoft Edge versions prior to 148.0.7778.179.
What caused CVE-2026-9116?
CVE-2026-9116 was caused by insufficient policy enforcement in the ServiceWorker within affected browser versions.