CVE-2026-86203
6.3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
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, causing inventory items and experience to drop multiple times for duplication.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| pmmp | PocketMine-MP | 0 < 5.39.2 | affected |
| pmmp | PocketMine-MP | 5.39.2 | unaffected |
Weaknesses
- CWE-664: Improper Control of a Resource Through its Lifetime
References
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-f9jp-856v-8642
- https://github.com/pmmp/PocketMine-MP/commit/c0719b76b18f2508143134e79bc9f1aa39109683
- https://www.vulncheck.com/advisories/pocketmine-mp-before-5.39.2-item-duplication-via-despawn-state
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