In Eclipse Jetty, across various versions of `jetty-security`, and `jetty-eeN-security`, and `jetty-eeN-servlet`, the Jakarta Spec constraints defined as `http-method-omission` can be bypassed by using substrings of the defined HTTP Methods.
History

Sat, 17 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Jetty
Jetty jetty
Vendors & Products Jetty
Jetty jetty

Fri, 16 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-358
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

threat_severity

Moderate


Thu, 15 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Description In Eclipse Jetty, across various versions of `jetty-security`, and `jetty-eeN-security`, and `jetty-eeN-servlet`, the Jakarta Spec constraints defined as `http-method-omission` can be bypassed by using substrings of the defined HTTP Methods.
Title Unauthenticated authorization bypass in ConstraintSecurityHandler - HTTP method-omission matched by substring
Weaknesses CWE-863
References
Metrics cvssV4_0

{'score': 6.9, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published: 2026-10-15T09:44:11.148Z

Updated: 2026-10-15T13:26:19.435Z

Reserved: 2026-08-03T13:20:03.063Z

Link: CVE-2026-18659

cve-icon Vulnrichment

Updated: 2026-10-15T13:26:16.229Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-15T10:17:11.943

Modified: 2026-10-15T14:41:34.110

Link: CVE-2026-18659

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-15T09:44:11Z

Links: CVE-2026-18659 - Bugzilla