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TI-2024-19667 Aliases CVE-2024-29900GHSA-34h3-8mw4-qw57

@electron/packager's build process memory potentially leaked into final executable

Priority MEDIUM 40CWE-402Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

Electron Packager bundles Electron-based application source code with a renamed Electron executable and supporting files into folders ready for distribution. A random segment of ~1-10kb of Node.js heap memory allocated either side of a known buffer will be leaked into the final executable. This memory _could_ contain sensitive information such as environment variables, secrets files, etc. This issue is patched in 18.3.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00633 50th percentileScored 2026-11-07
Fix Fixed @electron/packager (npm): 18.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
electronpackager= 18.3.0—No fix listedCNA
—@electron/packager (npm)18.3.0 to before 18.3.118.3.1Patch availableGHSA-34h3-8mw4-qw57
  • packager Vendorelectron Affected = 18.3.0 Fixed in — No fix listed CNA
  • @electron/packager (npm) Vendor— Affected 18.3.0 to before 18.3.1 Fixed in 18.3.1 Patch available GHSA-34h3-8mw4-qw57

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openjsf:packager:18.3.0:*:*:*:*:node.js:*:*18.3.0Vulnerablefast-uri
  • cpe:2.3:a:openjsf:packager:18.3.0:*:*:*:*:node.js:*:* Versions 18.3.0 Vulnerable ·fast-uri

Remediation

  • Fix · GHSA-34h3-8mw4-qw57 @electron/packager (npm) Fixed in 18.3.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-29900
  2. 2026-10-03 Alias added: GHSA-34h3-8mw4-qw57
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Patch 1

Advisory 2

Other 1

  • 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