---
id: CVE-2026-18662
title: >-
  In Eclipse Jetty, across various versions of `jetty-security`, and
  `jetty-eeN-security`, two or more security constraints with the same
  http-method-omission set, and no url-patterns, are not combined properly per
  Jakarta Servlet Spec.



  …
summary: >-
  In Eclipse Jetty, across various versions of `jetty-security`, and
  `jetty-eeN-security`, two or more security constraints with the same
  http-method-omission set, and no url-patterns, are not combined properly per
  Jakarta Servlet Spec.



  …
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-863
  - CWE-425
vendor: Eclipse Foundation
product: 'org.eclipse.jetty.ee11:jetty-ee11-servlet'
affected:
  - 'org.eclipse.jetty.ee11:jetty-ee11-servlet >= 12.1.0 <= 12.1.11'
  - 'org.eclipse.jetty.ee10:jetty-ee10-servlet >= 12.1.0 <= 12.1.11'
  - 'org.eclipse.jetty.ee10:jetty-ee10-servlet >= 12.0.0 <= 12.0.38'
  - 'org.eclipse.jetty.ee9:jetty-ee9-security >= 12.1.0 <= 12.1.11'
  - 'org.eclipse.jetty.ee9:jetty-ee9-security >= 12.0.0 <= 12.0.38'
  - 'org.eclipse.jetty.ee8:jetty-ee8-security >= 12.1.0 <= 12.1.11'
  - 'org.eclipse.jetty.ee8:jetty-ee8-security >= 12.0.0 <= 12.0.38'
  - 'org.eclipse.jetty:jetty-security >= 11.0.0 <= 11.0.32'
  - 'org.eclipse.jetty:jetty-security >= 10.0.0 <= 10.0.32'
  - 'org.eclipse.jetty:jetty-security >= 9.4.0 <= 9.4.64'
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T14:41:34.110'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18662'
references:
  - url: >-
      https://github.com/jetty/jetty.project/security/advisories/GHSA-phjh-v7c6-g7mv
    label: emo@eclipse.org
  - url: 'https://gitlab.eclipse.org/security/cve-assignment/-/work_items/210'
    label: emo@eclipse.org
  - url: >-
      https://github.com/jetty/jetty.project/security/advisories/GHSA-phjh-v7c6-g7mv
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18662.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-18662'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2553177'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-18662'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18662'
tags:
  - nvd
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-15T13:27:43.242446Z'
cvssSource: cna
ingestedAt: '2026-10-15T09:59:33.281Z'
epss: 0.00388
epssPercentile: 0.32758
scores:
  cna: 6.9
  vendor: 6.5
---

## Overview

In Eclipse Jetty, across various versions of `jetty-security`, and `jetty-eeN-security`, two or more security constraints with the same http-method-omission set, and no url-patterns, are not combined properly per Jakarta Servlet Spec.



Resulting in later http-method-omission sets overriding previous constraints with the same http-method-omission set.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Exploit Intelligence, OpenShift Developer Tools and Services, Red Hat AMQ Broker 7, Red Hat build of Apache Camel - HawtIO 4, Red Hat build of Apache Camel for Spring Boot 4, Red Hat build of Apicurio Registry 3, … · no fix planned: Exploit Intelligence, OpenShift Developer Tools and Services, Red Hat Fuse 7, Red Hat Offline Knowledge Portal, … · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18662.json)