CVE-2008-5519: Apache Mod Jk

Low severity, CVSS 2.6. EPSS: 7.3% chance of exploitation in the next 30 days.

The JK Connector (aka mod_jk) 1.2.0 through 1.2.26 in Apache Tomcat allows remote attackers to obtain sensitive information via an arbitrary request from an HTTP client, in opportunistic circumstances involving (1) a request from a different client that included a Content-Length header but no POST data or (2) a rapid series of requests, related to noncompliance with the AJP protocol's requirements for requests containing Content-Length headers.

Affected products

• Apache Mod Jk: version 1.2 only; version 1.2.1 only; version 1.2.6 only; version 1.2.7 only; version 1.2.8 only; version 1.2.9 only; …
• Apache Tomcat: version 4.0.0 only; version 4.0.1 only; version 4.0.2 only; version 4.0.3 only; version 4.0.4 only; version 4.0.5 only; …

Published 2009-04-09. Last modified 2026-06-16.