CVE-2026-9977
Insufficient Input Validation in Google Chrome Android WebShare Sandbox Escape
Publication date: 2026-05-28
Last updated on: 2026-05-29
Assigner: Chrome
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| chrome | 148.0.7778.216 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves insufficient validation of untrusted input in the WebShare feature of Google Chrome on Android versions prior to 148.0.7778.216. A remote attacker who has already compromised the renderer process can exploit this flaw by using a specially crafted HTML page to potentially escape the browser's sandbox.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update Google Chrome on Android to version 148.0.7778.216 or later, as the issue is fixed in that release.
How can this vulnerability impact me? :
If exploited, this vulnerability could allow an attacker to break out of the browser's sandbox environment, potentially gaining higher privileges on the affected device. This could lead to unauthorized access to sensitive data or further compromise of the system.