CVE-2025-71417

PocketMine-MP before 5.32.1 Denial of Service via ResourcePackClientResponsePacket

State: Published
Severity: 7.1 High
Published: Sep 9, 2026
Updated: Oct 8, 2026
Reserved: Sep 5, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
PocketMine-MPpmmp	before 5.32.1Affected 5.32.1Not affected

References

GitHub Security Advisory (GHSA-fqqv-56h5-f57g)vendor-advisory
VulnCheck Advisory: PocketMine-MP before 5.32.1 Denial of Service via ResourcePackClientResponsePacketthird-party-advisory

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