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High

PocketMine-MP before 5.41.1 LogDoS via LoginPacket clientData

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-86201

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-86201

PocketMine-MP

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "pmmp",
    "product": "PocketMine-MP",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "5.41.1",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.41.1",
        "versionType": "semver"
      }
    ],
    "packageURL": "pkg:composer/pocketmine/pocketmine-mp",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-86201

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#12939 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement