{"id":"CVE-2026-86203","title":"PocketMine-MP versions before 5.39.2 fail to validate entity despawn state when processing attack packets from clients","summary":"PocketMine-MP versions before 5.39.2 fail to validate entity despawn state when processing attack packets from clients. Attackers can exploit a race condition by attacking a disconnecting player to trigger multiple death handlers, causin…","severity":"low","cvss":3.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-664"],"vendor":"pmmp","product":"PocketMine-MP","affected":["PocketMine-MP < 5.39.2"],"published":"2026-09-09","updated":"2026-09-10","sourceUpdated":"2026-09-10T15:17:50.307","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-86203","references":[{"url":"https://github.com/pmmp/PocketMine-MP/commit/c0719b76b18f2508143134e79bc9f1aa39109683","label":"disclosure@vulncheck.com"},{"url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-f9jp-856v-8642","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-5.39.2-item-duplication-via-despawn-state","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-10T14:18:46.770958Z"},"ingestedAt":"2026-09-10T20:38:11.038Z","epss":0.00275,"epssPercentile":0.20131,"slug":"CVE-2026-86203","body":"## Overview\n\nPocketMine-MP versions before 5.39.2 fail to validate entity despawn state when processing attack packets from clients. Attackers can exploit a race condition by attacking a disconnecting player to trigger multiple death handlers, causing inventory items and experience to drop multiple times for duplication.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":20.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}