CVE-2009-4086: JavaScript Xerver HTTP Server

Medium severity, CVSS 5.0. EPSS: 4.8% chance of exploitation in the next 30 days.

CRLF injection vulnerability in Xerver HTTP Server 4.31 and 4.32 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via certain byte sequences at the end of a URL. NOTE: some of these details are obtained from third party information.

Affected products

• JavaScript Xerver HTTP Server: version 4.31 only; version 4.32 only

Published 2009-11-29. Last modified 2026-06-16.