CVE-2018-8015: Apache Orc

High severity, CVSS 7.5. EPSS: 3.3% chance of exploitation in the next 30 days.

In Apache ORC 1.0.0 to 1.4.3 a malformed ORC file can trigger an endlessly recursive function call in the C++ or Java parser. The impact of this bug is most likely denial-of-service against software that uses the ORC file parser. With the C++ parser, the stack overflow might possibly corrupt the stack.

Affected products

• Apache Orc: after 1.0.0, up to and including 1.4.3

Published 2018-05-18. Last modified 2026-06-17.