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Critical · 9.8 CVE-2026-41871 EUVD-2026-74803GHSA-5w4f-vwv7-mj4c

Apache Nutch: Unauthenticated reflection-based job execution in Nutch Server (Nutch REST API)

Published Sep 9, 2026 · Updated Sep 10, 2026 · Assigned by apache

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/ .

Affected products

VendorProductAffectedFixed
Apache Software Foundation Apache Nutch 1.10 – ≤ 1.22 —

References