{"id":"CVE-2026-40984","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-40984","summary":"Micrometer HTTP server instrumentations DoS","details":"In Micrometer, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition.\n\nAffected versions:\nmicrometer-core 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18; 1.9.0 through 1.9.17.\nmicrometer-jetty11 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18.\nmicrometer-jetty12 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18.","published":"2026-06-09T06:31:56Z","modified":"2026-08-07T21:11:57.517645225Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00752,"percentile":0.51598,"asOf":"2026-08-09"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"io.micrometer:micrometer-core","fixedVersion":"1.16.6"},{"ecosystem":"Maven","name":"io.micrometer:micrometer-core","fixedVersion":"1.15.12"},{"ecosystem":"Maven","name":"io.micrometer:micrometer-core","fixedVersion":null},{"ecosystem":"Maven","name":"io.micrometer:micrometer-core","fixedVersion":null},{"ecosystem":"Maven","name":"io.micrometer:micrometer-core","fixedVersion":null},{"ecosystem":"Maven","name":"io.micrometer:micrometer-jetty12","fixedVersion":"1.16.6"},{"ecosystem":"Maven","name":"io.micrometer:micrometer-jetty12","fixedVersion":"1.15.12"},{"ecosystem":"Maven","name":"io.micrometer:micrometer-jetty12","fixedVersion":null},{"ecosystem":"Maven","name":"io.micrometer:micrometer-jetty12","fixedVersion":null},{"ecosystem":"Maven","name":"io.micrometer:micrometer-jetty11","fixedVersion":"1.16.6"},{"ecosystem":"Maven","name":"io.micrometer:micrometer-jetty11","fixedVersion":"1.15.12"},{"ecosystem":"Maven","name":"io.micrometer:micrometer-jetty11","fixedVersion":null},{"ecosystem":"Maven","name":"io.micrometer:micrometer-jetty11","fixedVersion":null}],"fix":{"url":"https://github.com/micrometer-metrics/micrometer/commit/36da131525228188a36779a28471a76c79213dd4","label":"micrometer-metrics/micrometer@36da131"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40984"},{"type":"WEB","url":"https://github.com/micrometer-metrics/micrometer/commit/36da131525228188a36779a28471a76c79213dd4"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:36839"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:37390"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:41951"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:50848"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:50849"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-40984"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2486716"},{"type":"PACKAGE","url":"https://github.com/micrometer-metrics/micrometer"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40984.json"},{"type":"WEB","url":"https://spring.io/security/cve-2026-40984"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T21:11:57.517645225Z"}}