GHSA-qmv3-fv6v-rmhq
Electron: Sandboxed preload code cache can be poisoned by a compromised renderer
At a glance
- Published
- Updated
- CVE
- CVE-2026-102677
- CVSS_V3
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Description
### 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 that do not load untrusted content are not affected. ### Workarounds There are no app side workarounds, you must update to a patched version of Electron. ### Fixed Versions * `44.0.0-beta.6` * `43.5.0 ` * `42.10.0` ### For more information If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)
Affected packages
| Package | Versions |
|---|---|
| npm · electron | introduced 42.3.3, fixed 42.10.0 |
| npm · electron | introduced 43.0.0-beta.1, fixed 43.5.0 |
| npm · electron | introduced 44.0.0-alpha.1, fixed 44.0.0-beta.6 |
References
- https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq WEB
- https://github.com/electron/electron/pull/52480 WEB
- https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601 WEB
- https://github.com/electron/electron/commit/06a12a87a23f40abbf580fc7a552bc1189812c45 WEB
- https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3 WEB
- https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217 WEB
- https://github.com/electron/electron PACKAGE
- https://github.com/electron/electron/releases/tag/v42.10.0 WEB
- https://github.com/electron/electron/releases/tag/v43.5.0 WEB
- https://github.com/electron/electron/releases/tag/v44.0.0-beta.6 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |