CVE-2026-41870

0.0

Apache Nutch: Unauthenticated remote code execution (RCE) via JEXL injection in Nutch Server (Nutch REST API)

Overview
Vulnerability Timeline

Overview

Description

Missing Authorization, Improper Control of Generation of Code ('Code Injection'), Improper Control of Dynamically-Managed Code Resources, 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 1.11 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/ .

Details

INFO

Published Date :

Sept. 9, 2026, 11:17 a.m.

Last Modified :

Sept. 9, 2026, 12:17 p.m.

Remotely Exploit :

No

Source :

[email protected]

Impact

Affected Products

The following products are affected by CVE-2026-41870 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product	Action
1	Apache	nutch

: Total Affected Vendor : 1 | Products : 1

Solution

Upgrade Apache Nutch to version 1.23 or restrict access to the Nutch Service.

Upgrade Apache Nutch to version 1.23.
Restrict access to Nutch Service instances.
Consult Apache Nutch security advisories.

References

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-41870.

URL	Resource
https://lists.apache.org/thread/3pl59g0jzqx1bdh5w92qoftzn7c3x8j2
http://www.openwall.com/lists/oss-security/2026/09/08/4

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-41870 is associated with the following CWEs:

CWE-94: Improper Control of Generation of Code ('Code Injection')

CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

CWE-862: Missing Authorization

CWE-913: Improper Control of Dynamically-Managed Code Resources

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-41870 weaknesses.

CAPEC-35: Leverage Executable Code in Non-Executable Files Leverage Executable Code in Non-Executable Files CAPEC-77: Manipulating User-Controlled Variables Manipulating User-Controlled Variables CAPEC-242: Code Injection Code Injection CAPEC-138: Reflection Injection Reflection Injection CAPEC-665: Exploitation of Thunderbolt Protection Flaws Exploitation of Thunderbolt Protection Flaws

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-41870 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-41870 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

CVE Modified by af854a3a-2127-422b-91ae-364da2661108

Sep. 09, 2026

Action	Type	Old Value	New Value
Added	Reference		http://www.openwall.com/lists/oss-security/2026/09/08/4

New CVE Received by [email protected]