HIGH 8.7 NVD
CVE-2026-86201
PocketMine-MP before 5.41.1 contains a denial of service vulnerability in LoginPacket processing where large or complex structures in unknown clientData JWT pro
PocketMine-MP before 5.41.1 contains a denial of service vulnerability in LoginPacket processing where large or complex structures in unknown clientData JWT properties cause excessive logging without sanitization. Attackers can send crafted LoginPackets with deeply nested or massive object structures to trigger out-of-memory conditions and crash the server.
References
- https://github.com/pmmp/PocketMine-MP/commit/87d1c0cea09d972fd4c2fafb84dac2ecab7649f0
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h6rj-3m53-887h
- https://www.vulncheck.com/advisories/pocketmine-mp-before-5.41.1-logdos-via-loginpacket-cl
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-09-09 via NVD.
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