What is CVE-2022-51017?

CVE-2022-51017 is a high-severity vulnerability, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-09-07.

How severe is CVE-2022-51017?

High severity. CVSS v3 base score is 7.5 out of 10.

CVE-2022-51017

CVE-2022-51017

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2022-51017?: CVE-2022-51017 is a high-severity vulnerability, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-09-07.
How severe is CVE-2022-51017?: High severity. CVSS v3 base score is 7.5 out of 10.