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    CVE-2023-54355

    PocketMine-MP versions before 5.3.1 and 4.23.1 fail to validate that the identityPublicKey in LoginPacket uses the required secp384r1 elliptic curve. Attackers can provide LoginPackets with keys using different curves or non-EC key types to pass login verification but trigger an uncaught exception during ECDH key derivation, crashing the server.

    Published:Sep 9, 2026
    Last Modified:Sep 10, 2026
    EPS:Sep 9, 2026
    EPSS Score:0.00225
    CVSS Score:7.5

    Affected Products

    Vendor
    Pmmp
    Product
    Pocketmine-mp

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

    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-2026-86200 (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…
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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-2023-54355 — Pmmp (High 8.7) | CVE-DB