CVE-2024-27448
CRITICALCVE-2024-27448 is a critical-severity (CVSS 9.1) Cross-Site Request Forgery (CSRF) vulnerability in maildev. O3 Security confirms whether CVE-2024-27448 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
MailDev Remote Code Execution
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
maildevnpmDescription
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | maildev | ≥ 2.0.0-beta1 | No fix |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for maildev. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Remediation status
No patched version of maildev has shipped for CVE-2024-27448 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2024-27448 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2024-27448. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2024-27448 in your dependencies?
O3 detects CVE-2024-27448 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.