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CVE-2026-102677GHSA-QMV3-FV6V-RMHQ

Electron: Sandboxed preload code cache can be poisoned by a compromised renderer

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 42.10.0, 43.5.0, 44.0.0-beta.6
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • electron electron

    From 42.3.3 · fixed in 42.10.0; From 43.0.0-beta.1 · fixed in 43.5.0; From 44.0.0-alpha.1 · fixed in 44.0.0-beta.6

  • electronnpm

    From 42.3.3 · fixed in 42.10.0

  • electronnpm

    From 43.0.0-beta.1 · fixed in 43.5.0

  • electronnpm

    From 44.0.0-alpha.1 · fixed in 44.0.0-beta.6

References 8

GitHub · electron/electron