Medium severity · published Sep 9, 2026
CVE-2026-86198
PocketMine-MP before 5.44.2 Denial of Service via ResourcePackClientResponsePacket
4.2
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PO
PocketMine-MP · pmmp
before 5.44.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86198
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-86198
github.com
https://github.com/pmmp/PocketMine-MP/commit/7a27894146a04964ab628ed9033140fdbf887ff3
github.com
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-pg53-p7qp-65cv
www.vulncheck.com
https://www.vulncheck.com/advisories/pocketmine-mp-before-5.44.2-denial-of-service-via-resourcepackclientresponsepacket
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