Apache Nutch: Unauthenticated forced shutdown and job interruption in Nutch Server (Nutch REST API)

published 2026-09-09 2 mo ago modified 2026-09-10 59 d ago also EUVD-2026-74802

cvss: 9.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known

Missing Authorization, Improper Resource Shutdown and Job Interruption 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/ .

Patch / fix

fixed in 1

apache nutch 1.23

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 59 d ago (2026-09-10)

Exploit prediction

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CNA	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

Apache Software Foundation Apache Nutch

Classification

Weakness

CWE-862 Missing Authorization
CWE-404 Improper Resource Shutdown or Release

References

lists.apache.org /thread/ps4yhlvo6kdgmksdgb9lv1h4p0oy5fdj
vendor-advisory, mailing-list
openwall.com /lists/oss-security/2026/09/08/3
mailing-list, third-party-advisory

Sources

CVE List CVE-2026-41869
NVD CVE-2026-41869

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary