CVE-2026-9116
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk12th percentile - higher than 12% of all known CVEs
Summary
Insufficient policy enforcement in ServiceWorker in Google Chrome prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted HTML page. The vulnerability has a Chromium security severity of High.
Risk Assessment
An attacker could exploit this vulnerability to steal sensitive user data, such as session tokens or personal information, from other websites visited in the browser. The risk is high due to the ease of exploitation via a simple HTML page.
Recommendation
Immediately update Google Chrome to version 148.0.7778.179 or later. Also advise users to perform the update as soon as possible.
Other vulnerabilities in Google Chrome
See all- CVE-2026-8581High
A use after free vulnerability in GPU in Google Chrome prior to version 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.
- CVE-2026-8577High
Integer overflow in Fonts in Google Chrome prior to version 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.
- CVE-2026-8575High
A use after free vulnerability in the UI in Google Chrome prior to version 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.
- CVE-2026-8573High
Integer overflow in Codecs in Google Chrome on Windows prior to version 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted video file.
- CVE-2026-8569High
An out of bounds write in Codecs in Google Chrome on Mac prior to version 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted video file.
- CVE-2026-8558High
In Google Chrome prior to version 148.0.7778.168, an out of bounds write in Fonts allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.
- CVE-2026-8557High
In Google Chrome prior to version 148.0.7778.168, there was a use after free vulnerability in the Accessibility module that allowed a remote attacker who compromised the renderer process to perform privilege escalation via a crafted HTML page.
- CVE-2026-8555High
Use after free in GTK in Google Chrome on Windows prior to version 148.0.7778.168 allows a remote attacker to execute arbitrary code via a crafted HTML page.
- CVE-2026-8551High
A use after free vulnerability in Downloads in Google Chrome prior to version 148.0.7778.168 allowed a remote attacker to execute arbitrary code via a crafted HTML page if a user engaged in specific UI gestures.
- CVE-2026-8549High
Use after free in Media in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.
Original NVD description (English source)
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)
Vulnerability data from NVD (NIST) · CISA KEV · EPSS