CVE-2021-23901 - CVE House
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Status published Critical CVE-2021-23901

An XML external entity (XXE) injection vulnerability exists in the Nutch DmozParser

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • The Apache Nutch Project Management Committee would like to thank Martin Heyden for reporting this issue.

Affected Vendor

Apache Software Foundation

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Affected Software

Apache Nutch
Vulnerable Versions:
Apache Nutch

Timeline

Official Publish: January 25th, 2021
Last Modified: February 13th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses (CWE)