Vulnerability · Published Sep 9, 2026 · Assigned by VulnCheck

CVE-2025-71417PocketMine-MP before 5.32.1 Denial of Service via ResourcePackClientResponsePacket

Medium 6.5

In plain English

A medium-severity improper input validation in PocketMine-MP from pmmp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.4%top 62.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	pocketmine/pocketmine-mp	5.32.1	GHSA-fqqv-56h5-f57g

Affected products (as reported)

Vendor	Product	Versions
pmmp	PocketMine-MP	0 – before 5.32.1

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

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