CVE-2026-70598 json
Electron: Off-screen rendering trusts GPU-supplied geometry over shared-memory size
published 3mo ago modified last mo. also EUVD-2026-53420 , GHSA-pfmc-3mgc-p6fp
- cvss
- 3.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm electron 39.8.10, 40.9.0, 41.2.1, 42.0.0-beta.3
- atom electron 39.8.10, 40.9.0, 41.2.1, 42.0.0-beta.3
- electronjs electron 39.8.10, 40.9.0, 41.2.1, 42.0.0-beta.3
Is CVE-2026-70598 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3mo ago
Exploit prediction
0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.9 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L |
| GitHub | 3.1 | 3.9 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | electron | <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 |
39.8.10 40.9.0 41.2.1 42.0.0-beta.3 |
Affected products
- electron electron
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
github.com
/electron/electron/commit/2c24640e7b0b9c74fe9f44bce0fde138340ff4fb
web, patch
-
github.com
/electron/electron/security/advisories/GHSA-pfmc-3mgc-p6fp
web, vendor-advisory, advisory
-
github.com
/electron/electron
package
Sources
- CVE List CVE-2026-70598
- GitHub Advisory GHSA-pfmc-3mgc-p6fp
- NVD CVE-2026-70598
- Maintainer advisory GHSA-pfmc-3mgc-p6fp
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of electron/electron published their own advisory on GitHub. Reviewed sources take precedence over it.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.