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/ .
Published: 2026-09-09
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 10 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache nutch
CPEs cpe:2.3:a:apache:nutch:*:*:*:*:*:*:*:*
Vendors & Products Apache
Apache nutch

Thu, 10 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 09 Sep 2026 12:30:00 +0000

Type Values Removed Values Added
References

Wed, 09 Sep 2026 11:00:00 +0000

Type Values Removed Values Added
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/ .
Title Apache Nutch: Unauthenticated reflection-based job execution in Nutch Server (Nutch REST API)
Weaknesses CWE-470
CWE-862
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-09-10T17:56:50.962Z

Reserved: 2026-04-22T06:35:10.384Z

Link: CVE-2026-41871

cve-icon Vulnrichment

Updated: 2026-09-09T11:10:19.289Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-09T11:17:14.570

Modified: 2026-09-10T20:38:51.250

Link: CVE-2026-41871

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T23:30:12Z

Weaknesses