CVE-2026-70598

Electron: Off-screen rendering trusts GPU-supplied geometry over shared-memory size

LOW

3.9

CVSS Score

Published: August 5, 2026 at 03:27 PM UTC

Updated: October 8, 2026 at 01:54 PM UTC

2 products affected across 2 vendorsElectronElectron

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Severity

LOW3.9

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 39.8.10, 40.9.0, 41.2.1, and 42.0.0-beta.3, offscreen rendering frame data received from the GPU process was not fully validated by the main process. A compromised GPU process could cause the main process to read out-of-bounds memory while producing paint event images, disclosing memory or crashing the app. This issue is fixed in 39.8.10, 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 < 39.8.1040.0.0 ≤ 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 39.8.10, 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

Electron · Electron

90%

v < 39.8.10>= 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 39.8.10, 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-pfmc-3mgc-p6fp

x_refsource_MISCPatch

Source: cverecord

https://github.com/electron/electron/commit/2c24640e7b0b9c74fe9f44bce0fde138340ff4fb

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

3.9LOWGitHub_M

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

Vector?

Quick Info

StatusANALYZED

CWE

CWE-125

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