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    CVE-2026-86200

    PocketMine-MP versions before 5.42.1 contain a denial of service vulnerability in the LoginPacket handler that allows remote attackers to flood warning messages by injecting numerous junk properties into the clientData JWT. Attackers can craft malicious login packets with excessive unknown properties to waste server CPU time and degrade performance.

    Published:Sep 9, 2026
    Last Modified:Sep 10, 2026
    EPS:Sep 9, 2026
    EPSS Score:0.00467
    CVSS Score:5.3

    Affected Products

    Vendor
    Pmmp
    Product
    Pocketmine-mp

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-779 Logging of Excessive Data

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-86202 (CVSS 5.3) — PocketMine-MP versions before 5.39.2 contain a network amplification vulnerability in ActorEventPacket handlin…
    CVE-2026-86201 (CVSS 8.7) — PocketMine-MP before 5.41.1 contains a denial of service vulnerability in LoginPacket processing where large o…
    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…
    CVE-2024-58380 (CVSS 7.1) — PocketMine-MP versions before 5.11.2 contain a denial of service vulnerability in BookEditPacket handling that…

    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