browser security

Chromium developers have closed a high‑severity upstream bug — tracked as CVE‑2025‑10201 — that the Chromium project describes as an “inappropriate implementation in Mojo” which could be abused, via a crafted HTML page, to bypass Chrome’s site‑isolation protections on Android, Linux and...

Google’s Chrome is quietly treating copy-and-paste as a first‑class privacy risk: Canary builds now show Safety Check automatically removing clipboard permissions from sites you haven’t visited recently, surface a clear “Removed permissions for [x] sites” notice in the menu, and give users a...

Mozilla has quietly pushed the Firefox 115 Extended Support Release (ESR) safety net forward again: security updates for Firefox 115 on legacy desktops — specifically Windows 7, Windows 8, Windows 8.1 and older macOS builds — will continue through March 2026, with Mozilla planning a formal...

Google's Chromium project has logged a serious security issue — tracked as CVE-2025-9866 — describing an inappropriate implementation in Extensions that can be weaponized to bypass Content Security Policy (CSP) via a crafted HTML page; Google has issued a Chrome stable update to remediate the...

Google's Chromium team has fixed a medium-severity UI spoofing flaw—tracked as CVE-2025-9865—that existed in the browser's Toolbar implementation and could allow domain spoofing on Android when a user performed specific UI gestures on crafted pages. Background Chromium's September 2025 security...

Palo Alto Networks has pushed a clear marker in the SASE arms race with the launch of Prisma SASE 4.0, a major platform refresh that explicitly frames the next phase of enterprise security as AI versus AI — protecting organizations not only from AI-augmented attackers, but from the uncontrolled...

Mozilla’s decision to keep Firefox 115 ESR alive for older machines is the latest twist in a multi-stage, pragmatic approach to supporting users who remain on end-of-life operating systems — the Extended Support Release for Firefox 115 will now be maintained for Windows 7, Windows 8/8.1 and...

Google’s quiet change to Chrome’s security documentation — adding an explicit AI Features section to the Chrome Security FAQ — is a small, technical edit with outsized implications for how browser vendors will treat generative AI moving forward. The new guidance makes a clear, pragmatic...

A high-severity memory-corruption flaw in Chromium’s V8 JavaScript engine, tracked as CVE-2025-9132, has been patched in the Chrome 139 stable update; the vulnerability is an out‑of‑bounds write that can lead to heap corruption and, in the worst case, remote code execution when a user visits a...

Microsoft Edge’s Canary channel has begun surfacing experimental controls that explicitly treat passkeys as first‑class syncable credentials in the browser, adding new flags labeled Passkey roaming and Passkey roaming management and settings, and exposing a combined “Passwords and passkeys” sync...

A recently disclosed memory-safety flaw in Chromium’s Aura windowing component — tracked as CVE-2025-8882 — allows a remote attacker who can trick a user into specific UI gestures to trigger a use‑after‑free that may lead to heap corruption; the bug was patched upstream in Google Chrome...

A race condition in V8, tracked as CVE‑2025‑8880, was disclosed by the Chromium team and fixed upstream in Chrome Stable — the flaw could allow a remote attacker to execute code inside the browser sandbox via a crafted webpage, and Chromium-based browsers (including Microsoft Edge) are advised...

A newly recorded Chromium vulnerability, tracked as CVE-2025-8881, exposes a weakness in the browser’s File Picker implementation that can be coaxed into leaking cross‑origin data when a user is tricked into specific UI gestures on a crafted page; the bug affects Google Chrome builds prior to...

Microsoft’s Security Response Center has published an advisory for CVE-2025-49755, a user‑interface (UI) misrepresentation — spoofing — vulnerability affecting Microsoft Edge (Chromium‑based) on Android devices, a flaw that allows a remote attacker to present misleading or falsified UI elements...

Google is experimenting with a new Incognito-mode protection called Script Blocking in Incognito that will block third‑party scripts known to perform browser fingerprinting techniques, using a list‑based Masked Domain List (MDL) and a small change to the Fetch specification that gives browsers a...

Microsoft has clarified that Microsoft Edge — and the Microsoft WebView2 Runtime — will continue to receive security and quality updates on Windows 10 (version 22H2) through at least October 2028, even though the Windows 10 operating system itself reaches its end-of-support milestone on October...

Microsoft’s recent lifecycle clarification — that Microsoft Edge (and the WebView2 runtime) will continue to receive security and quality updates on Windows 10, version 22H2, well after the operating system itself reaches end-of-support — reshapes migration timelines for millions of users and...

Microsoft has confirmed that Microsoft Edge and the Microsoft WebView2 runtime will continue to receive updates on Windows 10 (22H2) through at least October 2028, even though the Windows 10 operating system itself reaches end of support on October 14, 2025 — a separation that changes migration...

Microsoft has confirmed that Microsoft Edge and the Microsoft WebView2 Runtime will continue to receive updates on Windows 10 (22H2) through at least October 2028, ensuring that Progressive Web Apps (PWAs), WebView-dependent applications, and Edge-powered experiences like Copilot-related...

A critical security vulnerability, identified as CVE-2025-8579, has been discovered in Google Chrome's Gemini Live feature. This flaw, reported by security researcher Alesandro Ortiz on April 2, 2025, involves an inappropriate implementation within Gemini Live, potentially allowing unauthorized...