CVE-2026-66843

The vulnerability CVE-2026-66843 affects html_sanitize_ex: from 0.3.1 before 1.5.3. The HTML5 scrubber does not register the tag in allow_tag_with_uri_attributes/3, and its only guard is a prefix check on javascript:, allowing attacker-supplied data: URLs to reach a trusted page via the data att...

CVE-2026-70610

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.4, objects copied across the contextBridge boundary from untrusted content could carry an attacker-influenced prototype, enabling...

CVE-2026-70608

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 41.10.3, and 42.0.1, a sandboxed iframe without the allow-popups keyword could still open a new window or trigger setWindowOpenHandler with no user interaction because...

CVE-2026-70611

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.1, and 42.0.0-beta.3, the DevTools reveal in file manager action could launch the target file rather than reveal it. An attacker with a separate means of running...

Electron: Sandboxed iframes can launch external protocol handlers

Impact Requests to open external protocol URLs from web content did not take iframe sandbox restrictions into account, so a sandboxed iframe could cause an OS-registered external application to be launched. The frame's sandbox state was also not made available to the app's permission handlers. Ap...

CVE-2026-70612 Electron: Sandboxed iframes can launch external protocol handlers

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, requests to open external protocol URLs from web content did not take iframe sandbox restrictions into account, so a sandboxed iframe could...

CVE-2026-70612

The vulnerability CVE-2026-70612 affects Electron. It occurs when web content in sandboxed iframes can trigger external protocol handlers, because iframe sandbox restrictions were not applied to openExternal requests and the frame state wasn’t exposed to permission handlers. This could allow an O...

Electron: DevTools embedder handler executes arbitrary files via shell open

Impact The DevTools "reveal in file manager" action could launch the target file rather than reveal it. An attacker with a separate means of running script inside the DevTools frontend such as a malicious DevTools extension could use this to execute native code outside the sandbox. Apps are only...

CVE-2026-70611 Electron: DevTools embedder handler executes arbitrary files via shell open

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.1, and 42.0.0-beta.3, the DevTools reveal in file manager action could launch the target file rather than reveal it. An attacker with a separate means of running...

CVE-2026-70611

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.1, and 42.0.0-beta.3, the DevTools reveal in file manager action could launch the target file rather than reveal it. An attacker with a separate means of running...

Electron: contextBridge object copy honors prototype setters

Impact Objects copied across the contextBridge boundary from untrusted content could carry an attacker-influenced prototype, enabling prototype-pollution-style attacks against preload code despite context isolation being enabled. Apps are only affected if their preload code accepts object argumen...

CVE-2026-70610 Electron: contextBridge object copy honors prototype setters

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.4, objects copied across the contextBridge boundary from untrusted content could carry an attacker-influenced prototype, enabling...

CVE-2026-70610

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.4, objects copied across the contextBridge boundary from untrusted content could carry an attacker-influenced prototype, enabling...

CVE-2026-70610

Electron contextBridge prototype-pollution vulnerability: objects copied from untrusted content into preload code could carry attacker-influenced prototypes even with context isolation. Affected versions prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.4 are fixed in those respective releases. Wo...

Electron: Sandboxed iframe can bypass the allow-popups restriction via the OpenURL navigation path

Impact A sandboxed iframe without the allow-popups keyword could still open a new window or trigger setWindowOpenHandler with no user interaction, because new-window navigations taking the OpenURL path did not apply the iframe sandbox popup restriction. Apps that embed untrusted content in...

CVE-2026-70608 Electron: Sandboxed iframe can bypass the allow-popups restriction via the OpenURL navigation path

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 41.10.3, and 42.0.1, a sandboxed iframe without the allow-popups keyword could still open a new window or trigger setWindowOpenHandler with no user interaction because...

Electron: window.open features string controls some window options considered privileged

Impact Some window options supplied by web content in the window.open features string were applied to the new BrowserWindow without an allowlist. Untrusted content could set window options it should not control, including options that cause the main process to access attacker-chosen file or netwo...

CVE-2026-70607

CVE-2026-70607 affects Electron: prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, window.open() features strings could apply untrusted window options to a new BrowserWindow if the app does not override child window options via setWindowOpenHandler or overrideBrowserWindowOptions. This could le...

CVE-2026-70607

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, some window options supplied by web content in the window.open features string were applied to the new BrowserWindow without an allowlist...

EUVD-2026-53462

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, some window options supplied by web content in the window.open features string were applied to the new BrowserWindow without an allowlist...