{"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":"2026-10-15T10:17:12.097","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"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-10-15T09:59:33.284Z","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.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}