CVE-2005-3751: Apsis Pound

Medium severity, CVSS 4.3. EPSS: 1.5% chance of exploitation in the next 30 days.

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.

Affected products

• Apsis Pound: up to and including 1.9.3

Published 2005-11-22. Last modified 2026-06-16.