CVE-2026-86198

2.3 lowEPSS 0.4%

Low (2.3). EPSS 0.4% chance of exploitation in the next 30 days.

PocketMine-MP versions before 5.44.2 fail to properly validate multiple ResourcePackClientResponsePacket packets with STATUS_COMPLETED status during resource pack handling. Malicious clients can send batches of these packets to repeatedly trigger pre-spawn progression, creating duplicate Player objects and amplifying memory consumption and network traffic.

Severity

CVSS 4.0

2.3 low

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

4.2 medium

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWE: CWE-837
Published: 2026-09-09
Modified: 2026-09-10
Record from: the NVD, synced 2026-10-19

References

https://github.com/pmmp/PocketMine-MP/commit/7a27894146a04964ab628ed9033140fdbf887ff3
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-pg53-p7qp-65cv
https://www.vulncheck.com/advisories/pocketmine-mp-before-5.44.2-denial-of-service-via-resourcepackclientresponsepacket

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