PocketMine-MP before 5.44.2 Denial of Service via ResourcePackClientResponsePacket
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
PocketMine-MP versions before 5.44.2 fail to properly validate multiple ResourcePackClientResponsePacket packets with STATUS_COMPLETED status during resource pack handling. Malicious clients can send batches of these packets to repeatedly trigger pre-spawn progression, creating duplicate Player objects and amplifying memory consumption and network traffic.
Why it matters now
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
Remediation
- Fix · CNA PocketMine-MP (pmmp) Fixed in 5.44.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-86198
- 2026-10-03 Alias added: GHSA-hp34-98g7-38jv
References
Patch 1
More pmmp vulnerabilities
- 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
Sources
- CVE-2026-86198 · CVE Program
- CVE-2026-86198 · NVD
- FIRST EPSS
- GHSA-hp34-98g7-38jv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences