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 could write attacker-controlled cache data and cause Electron to reuse it for a later load, executing the renderer's code in the more privileged preload context. The issue affects applications that load untrusted content. This issue is fixed in versions 42.10.0, 43.5.0, and 44.0.0-beta.6.
- CVSS 3.1
- 8.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS
- 0.10% chance of exploitation in the next 30 days; higher than 0% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-20, CWE-345
- Published
- Modified
- Record from
- the NVD, synced
Affected
- electronjs:electron
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qmv3-fv6v-rmhq | npm | electron | >=42.3.3 <42.10.0 | 42.10.0 |
| GHSA-qmv3-fv6v-rmhq | npm | electron | >=43.0.0-beta.1 <43.5.0 | 43.5.0 |
| GHSA-qmv3-fv6v-rmhq | npm | electron | >=44.0.0-alpha.1 <44.0.0-beta.6 | 44.0.0-beta.6 |
References
- https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601
- https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3
- https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217
- https://github.com/electron/electron/pull/52480
- https://github.com/electron/electron/releases/tag/v42.10.0