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    CVE-2026-86201

    PocketMine-MP before 5.41.1 contains a denial of service vulnerability in LoginPacket processing where large or complex structures in unknown clientData JWT properties cause excessive logging without sanitization. Attackers can send crafted LoginPackets with deeply nested or massive object structures to trigger out-of-memory conditions and crash the server.

    Published:Sep 9, 2026
    Last Modified:Sep 10, 2026
    EPS:Sep 9, 2026
    EPSS Score:0.00339
    CVSS Score:7.5

    Affected Products

    Vendor
    Pmmp
    Product
    Pocketmine-mp

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-86200 (CVSS 6.9) — PocketMine-MP versions before 5.42.1 contain a denial of service vulnerability in the LoginPacket handler that…
    CVE-2026-86199 (CVSS 8.7) — PocketMine-MP versions before 5.43.1 fail to properly validate the Certificate field during offline login auth…
    CVE-2026-86198 (CVSS 2.3) — PocketMine-MP versions before 5.44.2 fail to properly validate multiple ResourcePackClientResponsePacket packe…
    CVE-2025-71418 (CVSS 6.9) — PocketMine-MP versions before 5.25.2 fail to limit the explode() function in packet parsing, allowing maliciou…
    CVE-2025-71417 (CVSS 7.1) — PocketMine-MP before 5.32.1 fails to validate uniqueness of pack UUIDs in ResourcePackClientResponsePacket STA…
    CVE-2024-58381 (CVSS 8.7) — PocketMine-MP before 5.11.1 contains a denial of service vulnerability in LoginPacket JSON processing that all…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-86201 — Pmmp (High 8.7) | CVE-DB