CVE-2026-85046

Dropbox Accounts Compromised Through Lenovo ID Authentication Flaw

Several thousand Dropbox accounts were breached between August 4 and 21 due to an authorization flaw involving Lenovo ID. The root cause was an error on Lenovo's side that permitted registration of accounts using arbitrary email addresses, which could then be used to access matching Dropbox accounts. Dropbox responded by forcing logouts for all users who had relied on Lenovo ID and by requiring direct password entry for Dropbox credentials. Approximately 5,000 accounts were affected, though only about one-third saw stored files accessed by attackers. Accounts protected by two-factor authentication remained unaffected. Additional reports from the same period covered Kaspersky analysis of ValleyRAT spyware using DLL sideloading, a critical SQL injection vulnerability in the All-in-One WP Migration WordPress plugin, and a Google Chrome update addressing CVE-2026-85046 in the V8 engine.

CVE-2026-85046 Exploited in Chromium V8 Engine, Affecting Chrome, Edge and Other Browsers

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added CVE-2026-85046 to its Known Exploited Vulnerabilities catalog after confirming active exploitation in the wild. The flaw resides in the V8 JavaScript engine of Chromium and stems from a type confusion issue that can allow arbitrary code execution inside the sandbox when a crafted HTML page is processed. Google released a patch for Chrome on September 3, 2026, while the vulnerability carries a CVSS v3.1 base score of 8.8 and is rated High severity. Because numerous browsers including Microsoft Edge, Opera, and Vivaldi are built on Chromium, they are potentially exposed until their respective vendors issue updates. Security teams are advised to verify that all Chromium-based browsers in their environments have been updated to the latest versions containing the fix.

Google Patches Actively Exploited V8 Zero-Day in Chrome (CVE-2026-85046)

Google has released an urgent update for Chrome to address CVE-2026-85046, a high-severity zero-day vulnerability in the V8 JavaScript engine that is being actively exploited in the wild. The flaw is a type confusion issue within the Maglev compiler, specifically tied to optimizations around Array.prototype.sort, which can lead to arbitrary memory read and write primitives inside the JavaScript heap. Attackers can exploit the vulnerability by tricking victims into visiting a specially crafted HTML page, enabling remote code execution within the browser sandbox. The update brings Chrome to version 152.0.7977.82 or higher on Windows, macOS, and Linux, while also addressing a total of 12 vulnerabilities. The issue was reported by researcher Salvatore Gulizia, known as Serotav, who received a $1,000 reward. Other Chromium-based browsers such as Edge, Brave, Opera, and Vivaldi will require corresponding updates from their vendors.

Google Patches Actively Exploited V8 Zero-Day in Chrome (CVE-2026-85046)

Google has released an urgent update for Chrome to address CVE-2026-85046, a high-severity zero-day vulnerability in the V8 JavaScript and WebAssembly engine that is being actively exploited in the wild. The flaw is a type confusion issue tied to the Maglev compiler and optimizations around Array.prototype.sort, which can lead to arbitrary memory read and write primitives inside the JavaScript heap. Successful exploitation allows a remote attacker to execute arbitrary code within the browser sandbox after a victim visits a specially crafted HTML page, a technique commonly seen in malvertising and compromised-site campaigns. The fix is included in Chrome 152.0.7977.82 and later for Windows, macOS, and Linux, and the update also resolves a total of twelve vulnerabilities. The vulnerability was reported on 4 August 2026 by researcher Salvatore Gulizia, known as Serotav, who received a $1,000 reward. Other Chromium-based browsers such as Microsoft Edge, Brave, Opera, and Vivaldi will require corresponding updates from their respective vendors.

Google Chrome Patches 12 Vulnerabilities Including Actively Exploited V8 Zero-Day

Google has released security updates for Chrome addressing 12 vulnerabilities across Windows, macOS, and Linux platforms. The updates include versions 152.0.7977.83 and 152.0.7977.82 for Windows and macOS, and 152.0.7977.82 for Linux. No critical-rated flaws were fixed in this batch, but ten issues carry a high severity rating. The most notable is CVE-2026-85046, a type confusion flaw in the V8 JavaScript engine that was reported on August 4 and is already being exploited in the wild. Additional high-severity fixes cover a race condition in V8 (CVE-2026-85045), a use-after-free in Compositing (CVE-2026-85048), and another type confusion issue (CVE-2026-85051). This marks the second Chrome security update in three days.