CVE-2026-102677
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
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
- https://github.com/electron/electron/releases/tag/v43.5.0
- https://github.com/electron/electron/releases/tag/v44.0.0-beta.6
- https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq
CWEs
CWE-20 CWE-345
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.