{"cve":"CVE-2019-18954","nvd":{"published":"2019-11-14T00:15:11.017","modified":"2026-06-17T02:25:38.270","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-668"],"references":["https://github.com/NetEase/pomelo/issues/1149","https://github.com/cl0udz/vulnerabilities/tree/master/pomelo-critical-state-manipulation","https://github.com/NetEase/pomelo/issues/1149","https://github.com/cl0udz/vulnerabilities/tree/master/pomelo-critical-state-manipulation"],"products":["netease:pomelo"],"source":"nvd","synced_at":"2026-10-19T20:59:25.448946135+00:00"},"epss":{"cve":"CVE-2019-18954","score":0.01157,"percentile":0.67066,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-4x6v-rwh4-55jw","url":"https://osv.dev/vulnerability/GHSA-4x6v-rwh4-55jw","summary":"Pomelo allows external control of critical state data","modified":"2023-11-08T04:01:26.949414Z","packages":[{"ecosystem":"npm","name":"pomelo","purl":"pkg:npm/pomelo","ranges":["<2.2.7"],"fixed":["2.2.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}