Improper input validation in Pmmp Pocketmine-Mp

CVE-2025-71417

PocketMine-MP before 5.32.1 fails to validate uniqueness of pack UUIDs in ResourcePackClientResponsePacket STATUS_SEND_PACKS handling, allowing authenticated clients to trigger duplicate pack transmissions. Attackers can send multiple copies of valid pack UUIDs in a single packet to exhaust server memory and cause denial of service.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-71417?
CVE-2025-71417 is a medium-severity vulnerability in Pmmp Pocketmine-Mp, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2026-09-09.
How severe is CVE-2025-71417?
Medium severity. CVSS v3 base score is 6.5 out of 10.