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TI-2026-27025 Aliases CVE-2026-34781GHSA-f37v-82c4-4x64

Electron crashes in clipboard.readImage() on malformed clipboard image data

Priority LOW 15CWE-476Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-476.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0015 4th percentileScored 2026-11-07
Fix Partial electron (electron): 39.8.5, 40.8.5, 41.1.0 +1electron (npm): 39.8.5, 40.8.5, 41.1.0 +1Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
electronelectronbefore 39.8.5; 40.0.0-alpha.1 to before 40.8.5; 41.0.0-alpha.1 to before 41.1.0; 42.0.0-alpha.1 to before 42.0.0-alpha.539.8.5, 40.8.5, 41.1.0, 42.0.0-alpha.5Patch availableCNA
—electron (npm)before 39.8.539.8.5Patch availableGHSA-f37v-82c4-4x64
—electron (npm)40.0.0-alpha.1 to before 40.8.540.8.5Patch availableGHSA-f37v-82c4-4x64
—electron (npm)41.0.0-alpha.1 to before 41.1.041.1.0Patch availableGHSA-f37v-82c4-4x64
—electron (npm)42.0.0-alpha.1 to before 42.0.0-alpha.542.0.0-alpha.5Patch availableGHSA-f37v-82c4-4x64
  • electron Vendorelectron Affected before 39.8.5; 40.0.0-alpha.1 to before 40.8.5; 41.0.0-alpha.1 to before 41.1.0; 42.0.0-alpha.1 to before 42.0.0-alpha.5 Fixed in 39.8.5, 40.8.5, 41.1.0, 42.0.0-alpha.5 Patch available CNA
  • electron (npm) Vendor— Affected before 39.8.5 Fixed in 39.8.5 Patch available GHSA-f37v-82c4-4x64
  • electron (npm) Vendor— Affected 40.0.0-alpha.1 to before 40.8.5 Fixed in 40.8.5 Patch available GHSA-f37v-82c4-4x64
  • electron (npm) Vendor— Affected 41.0.0-alpha.1 to before 41.1.0 Fixed in 41.1.0 Patch available GHSA-f37v-82c4-4x64
  • electron (npm) Vendor— Affected 42.0.0-alpha.1 to before 42.0.0-alpha.5 Fixed in 42.0.0-alpha.5 Patch available GHSA-f37v-82c4-4x64

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*up to 39.8.4; 40.0.0 – 40.8.4; 41.0.0 to before 41.1.0VulnerableElectronjs
cpe:2.3:a:electronjs:electron:41.2.0:*:*:*:*:node.js:*:*41.2.0VulnerableElectronjs
cpe:2.3:a:electronjs:electron:42.0.0:alpha1:*:*:*:node.js:*:*42.0.0 alpha1VulnerableElectronjs
cpe:2.3:a:electronjs:electron:42.0.0:alpha2:*:*:*:node.js:*:*42.0.0 alpha2VulnerableElectronjs
cpe:2.3:a:electronjs:electron:42.0.0:alpha3:*:*:*:node.js:*:*42.0.0 alpha3VulnerableElectronjs
cpe:2.3:a:electronjs:electron:42.0.0:alpha4:*:*:*:node.js:*:*42.0.0 alpha4VulnerableElectronjs
  • cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:* Versions up to 39.8.4; 40.0.0 – 40.8.4; 41.0.0 to before 41.1.0 Vulnerable ·Electronjs
  • cpe:2.3:a:electronjs:electron:41.2.0:*:*:*:*:node.js:*:* Versions 41.2.0 Vulnerable ·Electronjs
  • cpe:2.3:a:electronjs:electron:42.0.0:alpha1:*:*:*:node.js:*:* Versions 42.0.0 alpha1 Vulnerable ·Electronjs
  • cpe:2.3:a:electronjs:electron:42.0.0:alpha2:*:*:*:node.js:*:* Versions 42.0.0 alpha2 Vulnerable ·Electronjs
  • cpe:2.3:a:electronjs:electron:42.0.0:alpha3:*:*:*:node.js:*:* Versions 42.0.0 alpha3 Vulnerable ·Electronjs
  • cpe:2.3:a:electronjs:electron:42.0.0:alpha4:*:*:*:node.js:*:* Versions 42.0.0 alpha4 Vulnerable ·Electronjs

Remediation

  • Fix · CNA electron (electron) Fixed in 39.8.5, 40.8.5, 41.1.0, 42.0.0-alpha.5
  • Fix · GHSA-f37v-82c4-4x64 electron (npm) Fixed in 39.8.5 Advisory →
  • Fix · GHSA-f37v-82c4-4x64 electron (npm) Fixed in 40.8.5 Advisory →
  • Fix · GHSA-f37v-82c4-4x64 electron (npm) Fixed in 41.1.0 Advisory →
  • Fix · GHSA-f37v-82c4-4x64 electron (npm) Fixed in 42.0.0-alpha.5 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Build of Podman DesktopAffectedNo fix yet: Fix deferred
Red Hat Build of Podman Desktop - Tech PreviewAffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-34781
  2. 2026-10-03 Alias added: GHSA-f37v-82c4-4x64

References

Advisory 2

Other 7

  • TI-2026-39496 Information disclosure in electron-builder CVSS 4.0HIGH 8.2
  • TI-2024-26621 Code Signing Bypass on Windows in electron-updater < 6.3.0-alpha.6 CVSS 3.1HIGH 7.5
  • TI-2023-09452 Content-Secrity-Policy disabling eval not applied consistently in renderers with sandbox disabled in Electron CVSS 3.1CRITICAL 9.8
  • TI-2026-39157 Electron: Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow CVSS 4.0CRITICAL 9.3
  • TI-2017-09308 GitHub Electron before 1.6.8 allows remote command execution because of a nodeIntegration… CVSS 3.0HIGH 8.1
  • TI-2022-11788 Exposure of Resource to Wrong Sphere in Electron CVSS 3.1CRITICAL 9.8
See all 74 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences