CVE-2026-70611

Electron: DevTools embedder handler executes arbitrary files via shell open

MEDIUM

6.9

CVSS Score

Published: August 5, 2026 at 05:49 PM UTC

Updated: October 8, 2026 at 01:49 PM UTC

2 products affected across 2 vendorsElectronElectron

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Severity

MEDIUM6.9

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.1, and 42.0.0-beta.3, the DevTools reveal in file manager action could launch the target file rather than reveal it. An attacker with a separate means of running script inside the DevTools frontend, such as a malicious DevTools extension, could use showItemInFolder handling to execute native code outside the sandbox when DevTools is opened for windows exposed to untrusted content or untrusted DevTools extensions. This issue is fixed in 39.8.9, 40.9.2, 41.2.1, and 42.0.0-beta.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Electron · Electronjsnpm

95%

v < 39.8.940.0.0 ≤ v < 40.9.241.0.0 ≤ v < 41.2.1*42.0.0 42.0.0 alpha1 42.0.0 alpha2 42.0.0 alpha3 42.0.0 alpha4 42.0.0 alpha5 42.0.0 alpha6 42.0.0 beta1 42.0.0 beta2

Affected range stops below 39.8.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 40.9.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 41.2.1, so it looks safe — our inference, not a vendor statement

Electron · Electron

90%

v < 39.8.9>= 40.0.0-alpha.1, < 40.9.2>= 41.0.0-alpha.1, < 41.2.1>= 42.0.0-alpha.1, < 42.0.0-beta.3

Affected range stops below 39.8.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 40.9.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 41.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 42.0.0-beta.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (13)

x_refsource_CONFIRMVendor Advisory

Source: cverecord

https://github.com/electron/electron/security/advisories/GHSA-f2r8-jv7c-xqmp

x_refsource_MISCIssue TrackingPatch

Source: cverecord

https://github.com/electron/electron/pull/50937

x_refsource_MISCIssue TrackingPatch

Source: cverecord

https://github.com/electron/electron/pull/50938

x_refsource_MISCIssue TrackingPatch

Source: cverecord

https://github.com/electron/electron/pull/51114

x_refsource_MISCIssue TrackingPatch

Source: cverecord

https://github.com/electron/electron/pull/51115

x_refsource_MISCPatch

Source: cverecord

https://github.com/electron/electron/commit/10fb5b39c5287f70c4bbcab4c24197f3871ec322

x_refsource_MISCPatch

Source: cverecord

https://github.com/electron/electron/commit/1b8a298d629d5a642c816ea5f7505359de17b771

x_refsource_MISCPatch

Source: cverecord

https://github.com/electron/electron/commit/27bf1cae9274d5025684c7268496f435b7e06b44

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMGitHub_M

Attack Vector: LOCAL
Complexity: HIGH
Privileges: HIGH
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-78

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