CVE-2026-85050: 
Google Chrome vulnerability analysis and mitigation

CVE-2026-85050 is an out-of-bounds write vulnerability in the WebGL component of Google Chrome on Android, allowing a remote attacker to execute arbitrary code outside the Chrome sandbox via a crafted HTML page. It affects Google Chrome versions prior to 152.0.7977.82 on Android. The vulnerability was reported internally by Google on 2026-08-20 and patched on 2026-09-03 with the stable channel release. It carries a CVSS v3.1 base score of 9.6 (Critical) (Chrome Releases, GitHub Advisory).

The root cause is an out-of-bounds write (CWE-787) in Chrome's WebGL implementation on Android, where insufficient bounds checking allows memory to be written beyond the intended buffer boundaries. An attacker can exploit this by serving a specially crafted HTML page containing malicious WebGL content, which triggers the memory corruption when rendered by the victim's browser. The attack requires no privileges and only minimal user interaction (visiting a malicious page), and critically, successful exploitation allows code execution outside the Chrome sandbox — bypassing a key security boundary. The Chromium issue tracker entry is tracked under issue 549350408 (Chrome Releases, GitHub Advisory).

Successful exploitation grants a remote attacker the ability to execute arbitrary code outside the Chrome sandbox on Android devices, resulting in high impact to confidentiality, integrity, and availability of the affected system. Because the exploit escapes the sandbox, an attacker could access sensitive data stored on the device, install malware, or pivot to other device resources beyond the browser process. All Android users running Chrome versions prior to 152.0.7977.82 are at risk (Chrome Releases, GitHub Advisory).

As of the patch release date, there is no public proof-of-concept exploit specifically for CVE-2026-85050, and no evidence of in-the-wild exploitation has been reported for this CVE. The EPSS score is approximately 0.33%, placing it in the 26th percentile for exploitation likelihood. Notably, the same Chrome update (152.0.7977.82) addresses CVE-2026-85046 (V8 type confusion), for which Google confirmed active in-the-wild exploitation — CVE-2026-85050 itself is not listed as exploited. The vulnerability is not currently listed in the CISA Known Exploited Vulnerabilities catalog (Chrome Releases, GitHub Advisory).

Google has released a patch in Chrome stable channel version 152.0.7977.82 for Android (and 152.0.7977.82/.83 for Windows/Mac/Linux). Android users should update Chrome immediately via the Google Play Store. No configuration-based workaround is available; updating to the patched version is the only recommended remediation. Enterprise administrators should prioritize pushing the update to managed Android devices and verify deployment using vulnerability scanners (Nessus plugin IDs 342804, 343115, 343413, 343793, 343940, 344859; Qualys detection IDs 388637, 6288480) (Chrome Releases).

The September 3, 2026 Chrome update received broad coverage due to the simultaneous disclosure of CVE-2026-85046, an actively exploited V8 zero-day included in the same release. Security outlets including Heise, HotHardware, IT-Connect, and CyberPress covered the update with urgency, often framing it as a critical patch wave. The CIS issued an advisory (CIS Advisory 2026-088) noting multiple vulnerabilities in the update could allow arbitrary code execution. CVE-2026-85050 itself was noted as part of this broader wave of high-severity Chrome vulnerabilities patched simultaneously (Chrome Releases, CIS Advisory).