CVE-2026-86198CWE-837

CVE-2026-86198

Medium · published September 9, 2026

CVSS v3.1
4.2
EPSS
0%
Percentile
31.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.2 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
2.3 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00382 · 31.0th percentile
Weakness
CWE-837 · Improper Enforcement of a Single, Unique Action
Published
2026-09-09T18:17Z
References (3)
https://github.com/pmmp/PocketMine-MP/commit/7a27894146a04964ab628ed9033140fdbf887ff3 · [email protected]https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-pg53-p7qp-65cv · [email protected]https://www.vulncheck.com/advisories/pocketmine-mp-before-5.44.2-denial-of-service-via-resourcepackclientresponsepacket · [email protected]
EPSS history
Timeline
  • 11 SEP 03:19Z
    EPSS moved — → 0%
    epss
  • 09 SEP 13:32Z
    PocketMine-MP before 5.44.2 Denial of Service via ResourcePackClientResponsePacket
    cvelistv5