Electron: Sandboxed preload code cache can be poisoned by a compromised renderer

Impact The cache Electron keeps for sandboxed preload scripts did not verify that a cached entry matched the preload it was served for. A compromised renderer could use this to run its own code in the preload context on a later load. Apps are only affected if they load untrusted content. Apps tha...

Protection Mechanism Failure

Overview electron is a framework which lets you write cross-platform desktop applications using JavaScript, HTML and CSS. Affected versions of this package are vulnerable to Protection Mechanism Failure via insufficient keying of sandboxed preload script code cache entries, allowing a renderer...

CVE-2026-102677 Electron: Sandboxed preload code cache can be poisoned by a compromised renderer

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer...

CVE-2026-102677

The Electron framework (versions 42.3.3 to 42.10.0 , 43.5.0 , and 44.0.0-beta.6 ) is vulnerable to a sandboxed preload code cache poisoning issue. The root cause is a lack of verification ensuring that a cached entry matches the preload it was originally served for. A compromised renderer can inj...

CVE-2026-102677 Electron: Sandboxed preload code cache can be poisoned by a compromised renderer

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer...

CVE-2026-102677 Electron: Sandboxed preload code cache can be poisoned by a compromised renderer

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer...

EUVD-2026-89179

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer...

CVE-2026-102677

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer...

CVE-2026-102673

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.4, 42.5.2, and 43.0.0, popups opened from a sandboxed iframe through Electron's OpenURLFromTab navigation path, including links using target="blank" or a middle-click, did not...

CVE-2026-102674 Electron: Windows opened from a sandboxed top-level document do not inherit its sandbox restrictions

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, windows opened from a sandboxed top-level document did not inherit that document's active HTML sandbox restrictions. Untrusted content in a...

CVE-2026-102673: Origin Validation Error

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.4, 42.5.2, and 43.0.0, popups opened from a sandboxed iframe through Electron's OpenURLFromTab navigation path, including links using target="blank" or a middle-click, did not...

CVE-2026-102674: Incorrect Privilege Assignment

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, windows opened from a sandboxed top-level document did not inherit that document's active HTML sandbox restrictions. Untrusted content in a...

CVE-2026-102677: Improper Input Validation

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer...

EUVD-2026-66211

Trestle SSTI in Jinja2 include tags allows arbitrary code execution Incomplete fix of CVE-2026-46439...

CVE-2026-96807

In Flatpak before 1.18.1, a malicious sandboxed app can replace /.var/app/$appid/.ld.so with a symlink, causing regenerateldcache to write files at an arbitrary location. The filenames and content are not attacker controlled, making this hard to exploit...

UBUNTU-CVE-2026-96807

In Flatpak before 1.18.1, a malicious sandboxed app can replace /.var/app/$appid/.ld.so with a symlink, causing regenerateldcache to write files at an arbitrary location. The filenames and content are not attacker controlled, making this hard to exploit...

EUVD-2026-65212

Grav: The system, site, and theme Twig variables bypass the content sandbox entirely and are never covered by configdeniedpaths...

Duplicate Advisory: vm2: vm.freeze()/vm.readonly() bypass via accessor descriptor

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-633r-hq9m-c4ff. This link is maintained to preserve external references. Original Description vm2 versions from 3.9.6 before 3.11.7 fail to properly restrict access to accessor properties on frozen objects,...

GHSA-9F3G-34X8-92JC Duplicate Advisory: vm2: vm.freeze()/vm.readonly() bypass via accessor descriptor

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-633r-hq9m-c4ff. This link is maintained to preserve external references. Original Description vm2 versions from 3.9.6 before 3.11.7 fail to properly restrict access to accessor properties on frozen objects,...

Duplicate Advisory: vm2 exposes host HTTPS credentials and TLS traffic through globalAgent

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-h85j-hv3c-qfgq. This link is maintained to preserve external references. Original Description vm2 versions 3.11.3 through 3.11.6 expose the host process's real https.globalAgent to sandboxed code when a NodeVM i...