CVE-2019-17555: Apache Olingo

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

The AsyncResponseWrapperImpl class in Apache Olingo versions 4.0.0 to 4.6.0 reads the Retry-After header and passes it to the Thread.sleep() method without any check. If a malicious server returns a huge value in the header, then it can help to implement a DoS attack.

Affected products

• Apache Olingo: from 4.0.0, up to and including 4.6.0

Published 2019-12-04. Last modified 2026-06-17.