CVE-2026-70602Disclosure(electronjs / electron)

LOWCVSS 6.6 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, extension tab and scripting APIs were not scoped to the extension's own session. A malicious or compromised extension loaded into one session could navigate, script, and read from windows belonging to a different session. Apps are only affected if they load Chrome extensions via session.loadExtension and rely on separate sessions to isolate that extension from other content. This issue is fixed in versions 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-284

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • electron

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
electron

1 version affected across 1 product

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-05: 1Technical Details · 2026-08-05: 108-05
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-70602 Extension API Session Isolation Vulnerability in Electron Before 39.8.8 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-70602

    Post summary

    This text announces CVE-2026-70602, a session isolation flaw in Electron before v39.8.8, linking to a Vulmon page but providing no proof‑of‑concept, exploit code, or patch information.

    00000106
    4.1K followersView on X
CPE platform detail9 entries

9 of 9 entries

PartVendorProductVersionTarget SWTarget HW
Appelectronjselectron-node.js-
Appelectronjselectron42.0.0node.js-
Appelectronjselectron42.0.0node.js-
Appelectronjselectron42.0.0node.js-
Appelectronjselectron42.0.0node.js-
Appelectronjselectron42.0.0node.js-
Appelectronjselectron42.0.0node.js-
Appelectronjselectron42.0.0node.js-
Appelectronjselectron42.0.0node.js-

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