CVE-2026-70597

Electron: Parent process code-sign check is spoofable

MEDIUM

6.3

CVSS Score

Published: August 5, 2026 at 03:21 PM UTC

Updated: October 8, 2026 at 01:47 PM UTC

2 products affected across 2 vendorsElectronElectron

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Severity

MEDIUM6.3

Exploit prediction

EPSS 0.1%

SSVC

No known exploit

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, the check Electron uses on macOS to confirm it was launched by a same-signed parent process could be bypassed by a local process. Apps that enable fuse-based hardening restricting ELECTRON_RUN_AS_NODE and NODE_OPTIONS to same-signed parents rely on this check, and a local attacker could bypass it and run code inside the signed app, inheriting its TCC permissions and keychain access. This issue is fixed in 39.8.8, 40.9.0, 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 < 39.8.840.0.0 ≤ v < 40.9.041.0.0 ≤ 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 39.8.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 40.9.0, so it looks safe — our inference, not a vendor statement

Electron · Electron

90%

v < 39.8.8>= 40.0.0-alpha.1, < 40.9.0>= 41.0.0-alpha.1, < 41.2.1>= 42.0.0-alpha.1, < 42.0.0-beta.3

Affected range stops below 39.8.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 40.9.0, 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 (2)

x_refsource_CONFIRMVendor Advisory

Source: cverecord

https://github.com/electron/electron/security/advisories/GHSA-jm7p-cc5g-qwxx

x_refsource_MISCPatch

Source: cverecord

https://github.com/electron/electron/commit/0a6291a97d210db3733689e70a51f5711e38ed35

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

6.3MEDIUMGitHub_M

Attack Vector: LOCAL
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-367

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