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TI-2022-26446 Aliases CVE-2022-51017GHSA-q675-2qq9-hxh3

PocketMine-MP before 3.26.5 and 4.0.5 Denial of Service via Skin Data

Priority MEDIUM 45CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0063 50th percentileScored 2026-11-07
Fix Fixed PocketMine-MP (pmmp): 3.26.5, 4.0.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pmmpPocketMine-MP3.0.0 to before 3.26.5; 4.0.0 to before 4.0.53.26.5, 4.0.5Patch availableCNA
  • PocketMine-MP Vendorpmmp Affected 3.0.0 to before 3.26.5; 4.0.0 to before 4.0.5 Fixed in 3.26.5, 4.0.5 Patch available CNA

Remediation

  • Fix · CNA PocketMine-MP (pmmp) Fixed in 3.26.5, 4.0.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    pmmp PocketMine-MP 3.26.5, 4.0.5

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2022-26447 PocketMine-MP before 3.26.5 and 4.0.5 Input Validation via Book PagesPriority LOW 32
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-51017
  2. 2026-10-03 Alias added: GHSA-q675-2qq9-hxh3
  3. 2026-10-28 EPSS moved to the 50th–90th percentile

References

Patch 2

Advisory 1

  • TI-2026-58990 PocketMine-MP before 5.41.1 LogDoS via LoginPacket clientData CVSS 4.0HIGH 8.7
  • TI-2026-58988 PocketMine-MP before 5.43.1 Denial of Service via unauthenticated login CVSS 4.0HIGH 8.7
  • TI-2026-58993 PocketMine-MP before 5.39.2 Denial of Service via ModalFormResponsePacket CVSS 4.0HIGH 7.1
  • TI-2024-38460 PocketMine-MP before 5.11.1 Denial of Service via LoginPacket CVSS 4.0HIGH 8.7
  • TI-2023-30643 PocketMine-MP before 4.20.5 Denial of Service via LoginPacket CVSS 4.0HIGH 8.7
  • TI-2023-30640 PocketMine-MP before 5.3.1 Denial of Service via LoginPacket CVSS 4.0HIGH 8.7
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences