CVE-2024-37162 is a medium-severity (CVSS 4) CWE-209 vulnerability in zsa. O3 Security confirms whether CVE-2024-37162 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
zsa Generates Error Messages Containing Sensitive Information
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.
zsanpmDescription
zsa is a library for building typesafe server actions in Next.js. All users are impacted. The zsa application transfers the parse error stack from the server to the client in production build mode. This can potentially reveal sensitive information about the server environment, such as the machine username and directory paths. An attacker could exploit this vulnerability to gain unauthorized access to sensitive server information. This information could be used to plan further attacks or gain a deeper understanding of the server infrastructure. This has been patched on 0.3.3.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | zsa | all versions | 0.3.3 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for zsa. 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.
Fix
Update zsa to 0.3.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-37162 is resolved across your whole dependency graph.
Workarounds
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-2024-37162 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-2024-37162. 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-2024-37162 in your dependencies?
O3 detects CVE-2024-37162 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.