CVE-2022-51017
PocketMine-MP before 3.26.5 and 4.0.5 Denial of Service via Skin Data
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-20 |
| Vendor | pmmp |
| Product | pocketmine-mp |
| Published | Sep 7, 2026 |
| Last Updated | Sep 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
pmmp / PocketMine-MP
3.0.0 < 3.26.5 4.0.0 < 4.0.5
References
github.com: https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-c6fg-99pr-25m9 github.com: https://github.com/pmmp/PocketMine-MP/commit/958a9dbf0fe3131ab60319c5a939f5dfbfe5dfbb github.com: https://github.com/pmmp/PocketMine-MP/commit/6492cac5c10f9fa8443ceddd2191a7b65b73f601 vulncheck.com: https://www.vulncheck.com/advisories/pocketmine-mp-before-3.26.5-and-4.0.5-denial-of-service-via-skin-data