{"id":"CVE-2018-18854","aliases":["GHSA-q8xj-8xg3-w432"],"url":"https://o3.security/vulnerability/CVE-2018-18854","summary":"Uncontrolled Resource Consumption in spray-json","details":"Lightbend Spray spray-json through 1.3.4 allows remote attackers to cause a denial of service (resource consumption) because of Algorithmic Complexity during the parsing of many JSON object fields (with keys that have the same hash code).","published":"2018-10-31T05:29:00.297Z","modified":"2026-07-08T17:17:00.783610Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Maven","name":"io.spray:spray-json_2.12","fixedVersion":"1.3.5"},{"ecosystem":"Maven","name":"io.spray:spray-json_2.11","fixedVersion":"1.3.5"},{"ecosystem":"Maven","name":"io.spray:spray-json_2.10","fixedVersion":"1.3.5"}],"fix":null,"references":[{"type":"EVIDENCE","url":"https://github.com/spray/spray-json/issues/277"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T17:17:00.783610Z"}}