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TI-2022-26447 Aliases CVE-2022-51018GHSA-q643-57w3-775x

PocketMine-MP before 3.26.5 and 4.0.5 Input Validation via Book Pages

Priority LOW 32CWE-400Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

PocketMine-MP before 3.26.5 and 4.0.x before 4.0.5 does not limit book page text length, page count, or author/title length. A player who obtains a writable book can create oversized NBT ('book bombs'), causing excess bandwidth consumption and server crashes (exceeding the 1 MB chunk size limit when saving region-based worlds in PM3, or exceeding the 32 KiB TAG_String limit in PM4).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00436 38th 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
No
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-2022-26446 PocketMine-MP before 3.26.5 and 4.0.5 Denial of Service via Skin DataPriority MEDIUM 45
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-51018
  2. 2026-10-03 Alias added: GHSA-q643-57w3-775x

References

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