{"id":"CVE-2026-18660","title":"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.","summary":"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.","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-178","CWE-918"],"vendor":"Eclipse Foundation","product":"org.eclipse.jetty:jetty-server","affected":["org.eclipse.jetty:jetty-server >= 12.1.0 <= 12.1.11","org.eclipse.jetty:jetty-server >= 12.0.0 <= 12.0.38","org.eclipse.jetty:jetty-proxy >= 11.0.0 <= 11.0.32","org.eclipse.jetty:jetty-proxy >= 10.0.0 <= 10.0.32","org.eclipse.jetty:jetty-proxy >= 9.0.0 <= 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-2026-18660","references":[{"url":"https://github.com/jetty/jetty.project/security/advisories/GHSA-7wfj-j486-mxrf","label":"emo@eclipse.org"},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/212","label":"emo@eclipse.org"},{"url":"https://github.com/jetty/jetty.project/security/advisories/GHSA-7wfj-j486-mxrf","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18660.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-18660"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553134"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-18660"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18660"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-15T13:32:20.181630Z"},"cvssSource":"cna","ingestedAt":"2026-10-15T09:59:33.284Z","scores":{"cna":8.8,"vendor":8.2},"epss":0.00315,"epssPercentile":0.24273,"slug":"CVE-2026-18660","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Exploit Intelligence, OpenShift Developer Tools and Services, OpenShift Serverless, Red Hat AMQ Broker 7, Red Hat build of Apache Camel - HawtIO 4, Red Hat build of Apache Camel for Spring Boot 4, … · no fix planned: Exploit Intelligence, OpenShift Developer Tools and Services, OpenShift Serverless, Red Hat AMQ Broker 7, … · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18660.json)","depth":"midnight","depthScore":60,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":222375,"id":"CVE-2026-18660","ts":1792073318044,"field":"exploit_available","old":"false","new":"true"}]}