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CVE-2026-34764— Electron has a use-after-free in offscreen shared texture release() callback

Quick assessment

Affected
electron electron
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Electron是Electron开源的一个用户编写跨平台桌面应用的 JavaScript 框架。该框架基于 nodejs 和 Chromium 可以使用HTML，CSS实现跨平台桌面应用的编写。 Electron 33.0.0-alpha.1至39.8.5之前版本、40.8.5之前版本、41.1.0之前版本和42.0.0-alpha.5之前版本存在资源管理错误漏洞，该漏洞源于使用GPU共享纹理的离屏渲染时存在释放后重用问题，可能导致崩溃或内存损坏。

CVSS 2.3 · Low EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth
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I. Basic Information for CVE-2026-34764

Vulnerability Information
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Vulnerability Title
Electron has a use-after-free in offscreen shared texture release() callback
Source: CVE Program / CVE List V5
Vulnerability Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 33.0.0-alpha.1 to before 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5, apps that use offscreen rendering with GPU shared textures may be vulnerable to a use-after-free. Under certain conditions, the release() callback provided on a paint event texture can outlive its backing native state, and invoking it after that point dereferences freed memory in the main process, which may lead to a crash or memory corruption. Apps are only affected if they use offscreen rendering with webPreferences.offscreen: { useSharedTexture: true }. Apps that do not enable shared-texture offscreen rendering are not affected. To mitigate this issue, ensure texture.release() is called promptly after the texture has been consumed, before the texture object becomes unreachable. This vulnerability is fixed in 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Electron 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Electron是Electron开源的一个用户编写跨平台桌面应用的 JavaScript 框架。该框架基于 nodejs 和 Chromium 可以使用HTML，CSS实现跨平台桌面应用的编写。 Electron 33.0.0-alpha.1至39.8.5之前版本、40.8.5之前版本、41.1.0之前版本和42.0.0-alpha.5之前版本存在资源管理错误漏洞，该漏洞源于使用GPU共享纹理的离屏渲染时存在释放后重用问题，可能导致崩溃或内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
electron electron >= 33.0.0-alpha.1, < 39.8.5 -

II. Public POCs for CVE-2026-34764

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III. Intelligence Information for CVE-2026-34764

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IV. Related Vulnerabilities

Same product: electron
Same vendor: electron
Same weakness: CWE-416

V. Comments for CVE-2026-34764

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