Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N C H H H 8.8 .0010 0.8 —
AFFECTED Product Versions Fixed electron >= 42.3.3, < 42.10.0 – —
TIMELINE Sep 29 Reserved by GitHub_M Sep 29 Published (CNA: GitHub_M) Oct 8 RESCORED — CVE-2026-102677 (electron). CVSS 7.8 → 8.8 (NVD).
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.
| Date | Event | Detail |
|---|---|---|
| September 29, 2026 | Reserved | Reserved by GitHub_M |
| September 29, 2026 | Published | Published (CNA: GitHub_M) |
| October 8, 2026 | RESCORED | RESCORED — CVE-2026-102677 (electron). CVSS 7.8 → 8.8 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| electron | electron | — | >= 42.3.3, < 42.10.0 | — |
Authoritative record: CVE-2026-102677 at cve.org
Vendors: electron
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-102677 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
