CVE-2021-23901: Apache Nutch

Critical severity, CVSS 9.1. EPSS: 4.4% chance of exploitation in the next 30 days.

An XML external entity (XXE) injection vulnerability was discovered in the Nutch DmozParser and is known to affect Nutch versions < 1.18. XML external entity injection (also known as XXE) is a web security vulnerability that allows an attacker to interfere with an application's processing of XML data. It often allows an attacker to view files on the application server filesystem, and to interact with any back-end or external systems that the application itself can access. This issue is fixed in Apache Nutch 1.18.

Affected products

• Apache Nutch: before 1.18 (fixed in 1.18)
• Netapp Snap Creator Framework: affected versions not specified

Published 2021-01-25. Last modified 2026-06-17.