CVE-2018-14642: Red Hat JBoss Enterprise Application Platform

Medium severity, CVSS 5.3. EPSS: 2.1% chance of exploitation in the next 30 days.

An information leak vulnerability was found in Undertow. If all headers are not written out in the first write() call then the code that handles flushing the buffer will always write out the full contents of the writevBuffer buffer, which may contain data from previous requests.

Affected products

• Red Hat JBoss Enterprise Application Platform: version 7.1 only; version 7.2 only; version 7.3 only
• Red Hat Undertow: affected versions not specified

Published 2018-09-18. Last modified 2026-06-17.