Severity: important
Affected versions:
- Apache Nutch 1.10 through 1.22
Description:
Missing Authorization, Use of Externally-Controlled Input to Select Classes or
Code ('Unsafe Reflection') vulnerability in Apache Nutch Server (Nutch REST
API).
This issue affects Apache Nutch: from 1.10 through 1.22.
Users are recommended to upgrade to version 1.23, which removes the Nutch
Server.
If an upgrade is not possible, user must restrict access to instances running
the Nutch Service to trusted users only.
Please, also visit the Apache Nutch security advisories
https://nutch.apache.org/documentation/security/ .
This issue is being tracked as NUTCH-3165
Credit:
The Apache Nutch Project Management Committee would like to thank Th1nk for
reporting this issue. (finder)
References:
https://nutch.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-41871
https://issues.apache.org/jira/browse/NUTCH-3165
