CVE-2026-34781

lowpriority · track · 13EPSS 0.001 · 4 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.14% (4th) EPSS

CVSS 3.3 · low

Is it mine?

13 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5, apps that call clipboard.readImage() may be vulnerable to a denial of service. If the system clipboard contains image data that fails to decode, the resulting null bitmap is passed unchecked to image construction, triggering a controlled abort and crashing the process. Apps are only affected if they call clipboard.readImage(). Apps that do not read images from the clipboard are not affected. This issue does not allow memory corruption or code execution. This vulnerability is fixed in 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5.

cvss

Technical severity, 0–10. One row per scoring source.

3.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.13.3lowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Lprimary · NVD / NIST USexploitability 1.8 · impact 1.4

v3.12.8lowCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.12.8lowCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:Lsecondary · security-advisories@github.comexploitability 1.3 · impact 1.4

v3.12.8lowCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:Lsecondary · OSV

v3.13.1lowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USCWE-476US

affected products (13)

Products and version ranges known to be affected.

Electron Electron≤ < 39.8.5enisa_euvdEU
Electron Electron40.0.0-alpha.1, → 40.8.5enisa_euvdEU
Electron Electron41.0.0-alpha.1, → 41.1.0enisa_euvdEU
Electron Electron42.0.0-alpha.1, → 42.0.0-alpha.5enisa_euvdEU
electronjs electron≤ 39.8.4nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
electronjs electron40.0.0 → 40.8.4nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
electronjs electron41.0.0 → 41.1.0nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
electronjs electron= 41.2.0nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
electronjs electron= 42.0.0nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
npm electron< 39.8.5osvUSpkg:npm/electron
npm electron40.0.0-alpha.1 → 40.8.5osvUSpkg:npm/electron
npm electron41.0.0-alpha.1 → 41.1.0osvUSpkg:npm/electron
npm electron42.0.0-alpha.1 → 42.0.0-alpha.5osvUSpkg:npm/electron

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-f37v-82c4-4x64Electron: Crash in clipboard.readImage() on malformed clipboard image data2026-04-07ghsa · osvUS
### Impact Apps that call `clipboard.readImage()` may be vulnerable to a denial of service. If the system clipboard contains image data that fails to decode, the resulting null bitmap is passed unchecked to image construction, triggering a controlled abort and crashing the process. Apps are only affected if they call `clipboard.readImage()`. Apps that do not read images from the clipboard are not affected. This issue does not allow memory corruption or code execution. ### Workarounds Validate that the clipboard contains image data via `clipboard.availableFormats()` before calling `clipboard.readImage()`. Note this only narrows the window — upgrading to a fixed version is recommended. ### Fixed Versions * `42.0.0-alpha.5` * `41.1.0` * `40.8.5` * `39.8.5` ### For more information If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2026-04-07modified 2026-07-24

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan