CVE-2026-86198

PocketMine-MP before 5.44.2 Denial of Service via ResourcePackClientResponsePacket

MEDIUM
4.2
CVSS Score
Published: September 9, 2026 at 01:32 PM UTC
Updated: September 10, 2026 at 03:17 PM UTC
1 product affected across 1 vendorPocketMine-MP

Using PocketMine-MP by pmmp?

Get instant alerts when new vulnerabilities affect PocketMine-MP - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.2
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.44.2
Vendor states this is fixed in 5.44.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.2MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-837

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card