---
id: CVE-2026-18661
title: >-
  In Eclipse Jetty, across various versions of `jetty-annotations`, and
  `jetty-eeN-annotations`, the Jakarta Spec authoritative url-pattern rules for
  mixed `@ServletSecurity` annotation, and `web.xml` defined
  `security-constraint` on the s…
summary: >-
  In Eclipse Jetty, across various versions of `jetty-annotations`, and
  `jetty-eeN-annotations`, the Jakarta Spec authoritative url-pattern rules for
  mixed `@ServletSecurity` annotation, and `web.xml` defined
  `security-constraint` on the s…
severity: high
cvss: 8.8
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-863
vendor: Eclipse Foundation
product: 'org.eclipse.jetty.ee11:jetty-ee11-annotations'
affected:
  - 'org.eclipse.jetty.ee11:jetty-ee11-annotations >= 12.1.0 <= 12.1.11'
  - 'org.eclipse.jetty.ee10:jetty-ee10-annotations >= 12.1.0 <= 12.1.11'
  - 'org.eclipse.jetty.ee10:jetty-ee10-annotations >= 12.0.0 <= 12.0.38'
  - 'org.eclipse.jetty.ee9:jetty-ee9-annotations >= 12.1.0 <= 12.1.11'
  - 'org.eclipse.jetty.ee9:jetty-ee9-annotations >= 12.0.0 <= 12.0.38'
  - 'org.eclipse.jetty.ee8:jetty-ee8-annotations >= 12.1.0 <= 12.1.11'
  - 'org.eclipse.jetty.ee8:jetty-ee8-annotations >= 12.0.0 <= 12.0.38'
  - 'org.eclipse.jetty:jetty-annotations >= 11.0.0 <= 11.0.32'
  - 'org.eclipse.jetty:jetty-annotations >= 10.0.0 <= 10.0.32'
  - 'org.eclipse.jetty:jetty-annotations >= 9.4.0 <= 9.4.64'
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T10:17:12.230'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18661'
references:
  - url: >-
      https://github.com/jetty/jetty.project/security/advisories/GHSA-v6xf-996f-c35f
    label: emo@eclipse.org
  - url: 'https://gitlab.eclipse.org/security/cve-assignment/-/work_items/211'
    label: emo@eclipse.org
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-15T09:59:33.278Z'
---

## Overview

In Eclipse Jetty, across various versions of `jetty-annotations`, and `jetty-eeN-annotations`, the Jakarta Spec authoritative url-pattern rules for mixed `@ServletSecurity` annotation, and `web.xml` defined `security-constraint` on the same `url-pattern` were not being applied if the `web.xml` had more than 1 `url-pattern` for a servlet, and had a `security-constraint` applying to only some of those `url-pattern` definitions.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.