CVE-2026-79256: Externally controlled reference in Google Chrome
Description
CVE-2026-79256 is a high-severity vulnerability in Google Chrome on Android prior to version 152.0.7977.65. It involves an externally controlled reference in the WebView component that could allow a remote attacker, who has already compromised the renderer process, to execute arbitrary code outside the sandbox via a crafted HTML page. This vulnerability has a CVSS score of 8.3, indicating a significant impact on confidentiality, integrity, and availability. No known exploits are reported in the wild. The vendor advisory linked does not explicitly confirm patch availability or remediation status.
CVSS v3.1
Score 8.3high
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-79256) affects Google Chrome on Android versions before 152.0.7977.65. It arises from an externally controlled reference in the WebView component, which could be exploited by a remote attacker with control over the renderer process to execute arbitrary code outside the sandbox environment. The CVSS 3.1 vector indicates network attack vector with high complexity, no privileges required, user interaction required, scope changed, and high impact on confidentiality, integrity, and availability. The vulnerability is classified as high severity by Chromium security.
Potential Impact
Successful exploitation could allow an attacker who has compromised the renderer process to execute arbitrary code outside the sandbox, potentially leading to full compromise of the affected device's security boundaries. This impacts confidentiality, integrity, and availability of the system. However, exploitation requires prior compromise of the renderer process and user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html for current remediation guidance. Users and administrators should monitor for updates and apply them once available to mitigate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:12:41.603Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9e8acd9273b49ac7375
Added to database: 08/25/2026, 20:24:08 UTC
Last enriched: 09/09/2026, 21:37:28 UTC
Last updated: 10/10/2026, 06:48:19 UTC
Views: 40
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