CVE-2026-41871

critical · 9.8

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/ .

9.8

CVSS

0.7%

EPSS (exploit prob.)

55th

EPSS percentile

2026-09-09

Published

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

Weaknesses

CWE-470CWE-862

Affected products

Vendor	Product	Affected versions
apache	nutch	>= 1.10, < 1.23

Check a specific version with /api/v1/cve/match.

References

https://lists.apache.org/thread/rbr63fx8vlrhzrfknq2l0mg0d0blsl54
http://www.openwall.com/lists/oss-security/2026/09/08/5

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-41871