# CVE-2026-41869: Apache Nutch missing authorization in REST API

Source: https://junglewise.ai/threats/cve-2026-41869-apache-nutch-missing-authorization-in-rest-api  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-09. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-41869 · Severity: critical · CVSS 9.1 · Published 2026-09-09

Apache Nutch is an open-source web crawler used for large-scale indexing and search applications. The Nutch Server REST API lacks proper authorization checks, allowing unauthenticated attackers to forcefully shut down the service or interrupt active indexing jobs. This can cause operational disruption and data loss in search and crawling infrastructure that depends on Nutch.

Technologies: [Apache Nutch](https://junglewise.ai/threats/technologies/nutch). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache).

## Quick answers

**Is CVE-2026-41869 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-41869 being exploited in the wild.

**How severe is CVE-2026-41869?** Critical severity, with a CVSS score of 9.1, published 9 September 2026.

**Which products and versions are affected?** Apache Nutch 1.10 through 1.22.

**Is there a fix for CVE-2026-41869?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-41869 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-41869?** Check whether you run Apache Nutch at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a missing authorization flaw in the Apache Nutch Server REST API endpoints that control resource shutdown and job interruption. Affected versions 1.10 through 1.22 do not properly validate user permissions before allowing callers to terminate the service or cancel jobs. The attack requires network access to the REST API but does not require authentication; an unauthenticated attacker can trigger service shutdown or job cancellation, causing availability and data integrity issues. Apache Nutch 1.23 removes the Nutch Server entirely to address this issue; for earlier versions, access should be restricted to trusted networks only.

## Affected products

- Apache Nutch 1.10 through 1.22

## Timeline

- 2026-09-08: disclosed
- 2026-09-09: advisory

## References

- [https://lists.apache.org/thread/ps4yhlvo6kdgmksdgb9lv1h4p0oy5fdj](https://lists.apache.org/thread/ps4yhlvo6kdgmksdgb9lv1h4p0oy5fdj)
- [http://www.openwall.com/lists/oss-security/2026/09/08/3](http://www.openwall.com/lists/oss-security/2026/09/08/3)

## Related threats

- [Apache Nutch unsafe reflection in REST API](https://junglewise.ai/threats/cve-2026-41871-apache-nutch-unsafe-reflection-in-rest-api)
- [Apache Nutch JEXL expression injection and code execution in REST API](https://junglewise.ai/threats/cve-2026-41870-apache-nutch-jexl-expression-injection-and-code-execution-in-rest)