CVE-2026-41871

9.8 criticalEPSS 0.7%

Critical (9.8) in apache nutch. EPSS 0.7% chance of exploitation in the next 30 days.

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/ .

Severity

CVSS 3.1

9.8 critical

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWEs: CWE-470, CWE-862
Published: 2026-09-09
Modified: 2026-09-10
Record from: the NVD, synced 2026-10-19

Affected

apache:nutch

References

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

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