EUVD-2026-74909
GHSA-hp34-98g7-38jv
Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/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:X
PR:L because exploitation requires reaching the resource pack handler phase as a connected client; A:L for limited per-client memory and network amplification; no confidentiality or integrity impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
4DescriptionCVE.org
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.
AnalysisAI
Resource pack handler in PocketMine-MP before 5.44.2 allows connected clients to repeatedly trigger pre-spawn progression by sending multiple ResourcePackClientResponsePacket packets with STATUS_COMPLETED status, causing the server to instantiate duplicate Player objects and amplify both memory consumption and network traffic. The affected code path in ResourcePacksPacketHandler.php lacked a re-entry guard to prevent handler transitions from executing more than once per session. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must be a connected Minecraft: Bedrock client that has advanced to the resource pack handler phase of the protocol handshake (PR:L per CVSS 4.0). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 2.3 (AV:N/AC:L/AT:P/PR:L/UI:N with VA:L/VI:L and no confidentiality impact) accurately characterises the constrained real-world risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: PocketMine-MP 5.44.2. … Detailed patch versions, workarounds, and compensating controls in full report. |
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