---
title: "CVE-2026-41870: Apache Nutch - Code Injection"
description: "Apache Nutch 1.11 through 1.22 contains a code injection and unsafe reflection vulnerability caused by missing authorization and improper control of dynamically-managed code in the Nutch REST API, letting attackers execute unauthorized code, exploit requires access to Nutch Server."
url: https://panop.io/threat-heartbeat/CVE-2026-41870/
---

# CVE-2026-41870 Apache Nutch - Code Injection

Apache Nutch 1.11 through 1.22 contains a code injection and unsafe reflection vulnerability caused by missing authorization and improper control of dynamically-managed code in the Nutch REST API, letting attackers execute unauthorized code, exploit requires access to Nutch Server.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.66% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-41870)

## Details

Type

Code Injection

Impact

Remote Code Execution

CVSS vector

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

Published

9 September 2026

Updated

15 October 2026

Weakness

[CWE-94](https://cwe.mitre.org/data/definitions/94.html)

## Vendor fix

Upgrade to version 1.23 or restrict access to trusted users only.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-41870](https://nvd.nist.gov/vuln/detail/CVE-2026-41870)
- [http://www.openwall.com/lists/oss-security/2026/09/08/4](http://www.openwall.com/lists/oss-security/2026/09/08/4)
- [https://lists.apache.org/thread/3pl59g0jzqx1bdh5w92qoftzn7c3x8j2](https://lists.apache.org/thread/3pl59g0jzqx1bdh5w92qoftzn7c3x8j2)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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