NULL pointer dereference in Electron
CVE-2026-34781
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5, apps that call clipboard.readImage() may be vulnerable to a denial of service. If the system clipboard contains image data that fails to decode, the resulting null bitmap is passed unchecked to image construction, triggering a controlled abort and crashing the process. Apps are only affected if they call clipboard.readImage(). Apps that do not read images from the clipboard are not affected. This issue does not allow memory corruption or code execution. This vulnerability is fixed in 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5.
EPSS: 0.001 (4.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.8 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Electron — versions < 39.8.5, >= 40.0.0-alpha.1, < 40.8.5, >= 41.0.0-alpha.1, < 41.1.0
- Electronjs Electron — versions 41.2.0, 42.0.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-34781?
- CVE-2026-34781 is a low-severity vulnerability in Electron, classified under NULL Pointer Dereference. CVSS score: 2.8/10. Published 2026-04-07.
- How severe is CVE-2026-34781?
- Low severity. CVSS v3 base score is 2.8 out of 10.