{"id":"CVE-2019-18954","aliases":["GHSA-4x6v-rwh4-55jw"],"url":"https://o3.security/vulnerability/CVE-2019-18954","summary":"Pomelo allows external control of critical state data","details":"Pomelo v2.2.5 allows external control of critical state data. A malicious user input can corrupt arbitrary methods and attributes in template/game-server/app/servers/connector/handler/entryHandler.js because certain internal attributes can be overwritten via a conflicting name. Hence, a malicious attacker can manipulate internal attributes by adding additional attributes to user input.","published":"2019-11-14T00:15:11.017Z","modified":"2026-07-08T17:18:30.687713Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"pomelo","fixedVersion":"2.2.7"}],"fix":null,"references":[{"type":"REPORT","url":"https://github.com/NetEase/pomelo/issues/1149"},{"type":"EVIDENCE","url":"https://github.com/cl0udz/vulnerabilities/tree/master/pomelo-critical-state-manipulation"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T17:18:30.687713Z"}}