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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-70598
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-05 16:17:03 UTC
Updated2026-08-05 19:17:38 UTC
DescriptionElectron 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.

Risk And Classification

Primary CVSS: v3.1 3.9 LOW from [email protected]

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L

Problem Types: CWE-125 | CWE-125 CWE-125: Out-of-bounds Read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary3.9LOWCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
3.1CNADECLARED3.9LOWCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
Low

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Electron Electron affected < 39.8.10 Not specified
CNA Electron Electron affected >= 40.0.0-alpha.1, < 40.9.0 Not specified
CNA Electron Electron affected >= 41.0.0-alpha.1, < 41.2.1 Not specified
CNA Electron Electron affected >= 42.0.0-alpha.1, < 42.0.0-beta.3 Not specified

References

ReferenceSourceLinkTags
github.com/electron/electron/commit/2c24640e7b0b9c74fe9f44bce0fde138340f... [email protected] github.com
github.com/electron/electron/security/advisories/GHSA-pfmc-3mgc-p6fp [email protected] github.com
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