CVE-2022-51017CWE-20

CVE-2022-51017

High · published September 7, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
40.0
In the wild
Unconfirmed
What it is

PocketMine-MP versions before 3.26.5 and 4.0.5 fail to validate the length of skin data fields submitted by players, allowing uncapped values to exceed the 32767 byte TAG_String limit. Attackers can submit oversized skin data fields like skinID or geometryName to trigger exceptions during NBT data serialization, causing server crashes.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00473 · 40.0th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-09-07T17:17Z
References (4)
https://github.com/pmmp/PocketMine-MP/commit/6492cac5c10f9fa8443ceddd2191a7b65b73f601 · [email protected]https://github.com/pmmp/PocketMine-MP/commit/958a9dbf0fe3131ab60319c5a939f5dfbfe5dfbb · [email protected]https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-c6fg-99pr-25m9 · [email protected]https://www.vulncheck.com/advisories/pocketmine-mp-before-3.26.5-and-4.0.5-denial-of-service-via-skin-data · [email protected]
EPSS history
Timeline
  • 09 SEP 03:12Z
    EPSS moved — → 0%
    epss
  • 07 SEP 12:55Z
    PocketMine-MP before 3.26.5 and 4.0.5 Denial of Service via Skin Data
    cvelistv5