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CVE-2022-51017

CVE-2022-51017

publishedCWE-20

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.

Technical severity8.7 highCVSS 4.0 · NVD: [email protected]
Published2026-09-07Source updated 2026-11-10
Collected2026-11-102 attributed sources

Fixes and workarounds

Fix

pocketmine/pocketmine-mp (Packagist): OSV reports a fixed version 3.26.5. Check the advisory for supported release branches.

Source: OSV GHSA-c6fg-99pr-25m9

Fix

pocketmine/pocketmine-mp (Packagist): OSV reports a fixed version 4.0.5. Check the advisory for supported release branches.

Source: OSV GHSA-c6fg-99pr-25m9

Affected products and versions

ProductVersionsAuthority
pocketmine/pocketmine-mp

pocketmine/pocketmine-mp
Packagist 		3.0.0 (affected, Packagist)
3.0.1 (affected, Packagist)
3.0.10 (affected, Packagist)
3.0.11 (affected, Packagist)
3.0.12 (affected, Packagist)
3.0.2 (affected, Packagist)
3.0.3 (affected, Packagist)
3.0.4 (affected, Packagist)
3.0.5 (affected, Packagist)
3.0.6 (affected, Packagist)
3.0.7 (affected, Packagist)
3.0.8 (affected, Packagist)
3.0.9 (affected, Packagist)
3.1.0 (affected, Packagist)
3.1.1 (affected, Packagist)
3.1.2 (affected, Packagist)
3.1.3 (affected, Packagist)
3.1.4 (affected, Packagist)
3.1.5 (affected, Packagist)
3.1.6 (affected, Packagist)
3.1.7 (affected, Packagist)
3.1.8 (affected, Packagist)
3.10.0 (affected, Packagist)
3.10.1 (affected, Packagist)
3.11.0 (affected, Packagist)
3.11.1 (affected, Packagist)
3.11.2 (affected, Packagist)
3.11.3 (affected, Packagist)
3.11.4 (affected, Packagist)
3.11.5 (affected, Packagist)
3.11.6 (affected, Packagist)
3.11.7 (affected, Packagist)
3.12.0 (affected, Packagist)
3.12.1 (affected, Packagist)
3.12.2 (affected, Packagist)
3.12.3 (affected, Packagist)
3.12.4 (affected, Packagist)
3.12.5 (affected, Packagist)
3.12.6 (affected, Packagist)
3.13.0 (affected, Packagist)
3.13.1 (affected, Packagist)
3.14.0 (affected, Packagist)
3.14.1 (affected, Packagist)
3.14.2 (affected, Packagist)
3.14.3 (affected, Packagist)
3.15.0 (affected, Packagist)
3.15.1 (affected, Packagist)
3.15.2 (affected, Packagist)
3.15.3 (affected, Packagist)
3.15.4 (affected, Packagist)
3.16.0 (affected, Packagist)
3.16.1 (affected, Packagist)
3.17.0 (affected, Packagist)
3.17.1 (affected, Packagist)
3.17.2 (affected, Packagist)
3.17.3 (affected, Packagist)
3.17.4 (affected, Packagist)
3.17.5 (affected, Packagist)
3.17.6 (affected, Packagist)
3.17.7 (affected, Packagist)
3.18.0 (affected, Packagist)
3.18.1 (affected, Packagist)
3.18.2 (affected, Packagist)
3.19.0 (affected, Packagist)
3.19.1 (affected, Packagist)
3.19.2 (affected, Packagist)
3.19.3 (affected, Packagist)
3.2.0 (affected, Packagist)
3.2.1 (affected, Packagist)
3.2.2 (affected, Packagist)
3.2.3 (affected, Packagist)
3.2.4 (affected, Packagist)
3.2.5 (affected, Packagist)
3.2.6 (affected, Packagist)
3.2.7 (affected, Packagist)
3.20.0 (affected, Packagist)
3.21.0 (affected, Packagist)
3.21.1 (affected, Packagist)
3.22.0 (affected, Packagist)
3.22.1 (affected, Packagist)
3.22.2 (affected, Packagist)
3.22.3 (affected, Packagist)
3.22.4 (affected, Packagist)
3.22.5 (affected, Packagist)
3.23.0 (affected, Packagist)
3.23.1 (affected, Packagist)
3.24.0 (affected, Packagist)
3.25.0 (affected, Packagist)
3.25.1 (affected, Packagist)
3.25.2 (affected, Packagist)
3.25.3 (affected, Packagist)
3.25.4 (affected, Packagist)
3.25.5 (affected, Packagist)
3.25.6 (affected, Packagist)
3.26.0 (affected, Packagist)
3.26.1 (affected, Packagist)
3.26.2 (affected, Packagist)
3.26.3 (affected, Packagist)
3.26.4 (affected, Packagist)
3.3.0 (affected, Packagist)
3.3.1 (affected, Packagist)
3.3.2 (affected, Packagist)
3.3.3 (affected, Packagist)
3.3.4 (affected, Packagist)
3.4.0 (affected, Packagist)
3.4.1 (affected, Packagist)
3.4.2 (affected, Packagist)
3.4.3 (affected, Packagist)
3.5.0 (affected, Packagist)
3.5.1 (affected, Packagist)
3.5.10 (affected, Packagist)
3.5.11 (affected, Packagist)
3.5.12 (affected, Packagist)
3.5.13 (affected, Packagist)
3.5.2 (affected, Packagist)
3.5.3 (affected, Packagist)
3.5.4 (affected, Packagist)
3.5.5 (affected, Packagist)
3.5.6 (affected, Packagist)
3.5.7 (affected, Packagist)
3.5.8 (affected, Packagist)
3.5.9 (affected, Packagist)
3.6.0 (affected, Packagist)
3.6.1 (affected, Packagist)
3.6.2 (affected, Packagist)
3.6.3 (affected, Packagist)
3.6.4 (affected, Packagist)
3.6.5 (affected, Packagist)
3.6.6 (affected, Packagist)
3.7.0 (affected, Packagist)
3.7.1 (affected, Packagist)
3.7.2 (affected, Packagist)
3.7.3 (affected, Packagist)
3.8.0 (affected, Packagist)
3.8.1 (affected, Packagist)
3.8.2 (affected, Packagist)
3.8.3 (affected, Packagist)
3.8.4 (affected, Packagist)
3.8.5 (affected, Packagist)
3.8.6 (affected, Packagist)
3.8.7 (affected, Packagist)
3.9.0 (affected, Packagist)
3.9.1 (affected, Packagist)
3.9.2 (affected, Packagist)
3.9.3 (affected, Packagist)
3.9.4 (affected, Packagist)
3.9.5 (affected, Packagist)
3.9.6 (affected, Packagist)
3.9.7 (affected, Packagist)
3.9.8 (affected, Packagist)
Ecosystem version events: introduced 0; fixed 3.26.5
Source events (ECOSYSTEM) 
[
  {
    "introduced": "0"
  },
  {
    "fixed": "3.26.5"
  }
]

Other versions: unaffected 		OSV GHSA-c6fg-99pr-25m9
pocketmine/pocketmine-mp

pocketmine/pocketmine-mp
Packagist 		4.0.0 (affected, Packagist)
4.0.1 (affected, Packagist)
4.0.2 (affected, Packagist)
4.0.3 (affected, Packagist)
4.0.4 (affected, Packagist)
Ecosystem version events: introduced 4.0.0; fixed 4.0.5
Source events (ECOSYSTEM) 
[
  {
    "introduced": "4.0.0"
  },
  {
    "fixed": "4.0.5"
  }
]

Other versions: unaffected 		OSV GHSA-c6fg-99pr-25m9

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

Version / scoreVectorAuthority
4.0 / 8.7
high		 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD: [email protected]
3.1 / 7.5
high		 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD: [email protected]

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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