{"id":"CVE-2026-18660","revision":"81e8ef60e2ec44888332f0485d0dd6e1","records":[{"revision":"81e8ef60e2ec44888332f0485d0dd6e1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-18660","aliases":[],"title":"Jetty proxy blacklist performs case-sensitive matching of case-insensitive DNS hostnames","description":"In Eclipse Jetty, across various versions of `jetty-server`, and `jetty-proxy`, the host whitelist/blacklist is case-sensitive, and would allow hosts through that only differ by case.","state":0,"publishedAt":"2026-10-15T09:38:02.125+00:00","modifiedAt":"2026-10-15T13:32:37.345+00:00","affected":[{"ecosystem":"https://repo.maven.apache.org/maven2/","name":"org.eclipse.jetty:jetty-server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Eclipse Foundation\",\n                    \"collectionURL\": \"https://repo.maven.apache.org/maven2/\",\n                    \"packageName\": \"org.eclipse.jetty:jetty-server\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"12.1.0\",\n                            \"lessThanOrEqual\": \"12.1.11\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"12.0.0\",\n                            \"lessThanOrEqual\": \"12.0.38\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"},{"ecosystem":"https://repo.maven.apache.org/maven2/","name":"org.eclipse.jetty:jetty-proxy","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Eclipse Foundation\",\n                    \"collectionURL\": \"https://repo.maven.apache.org/maven2/\",\n                    \"packageName\": \"org.eclipse.jetty:jetty-proxy\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"11.0.0\",\n                            \"lessThanOrEqual\": \"11.0.32\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"10.0.0\",\n                            \"lessThanOrEqual\": \"10.0.32\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.0.0\",\n                            \"lessThanOrEqual\": \"9.4.64\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.8,"severity":"HIGH"}],"references":["https://github.com/jetty/jetty.project/security/advisories/GHSA-7wfj-j486-mxrf","https://gitlab.eclipse.org/security/cve-assignment/-/work_items/212"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-18660","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-18660","identifiers":["CVE-2026-18660"]},"retained":false,"historicalAffected":[]}],"coverage":[]}