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OpenAdvisories
Low · 3.3 CVE-2021-48006 EUVD-2021-34876GHSA-5mrr-24gh-4jwhGHSA-j5qg-w9jg-3wg3

PocketMine-MP before 4.0.3 Operator Privilege Escalation via Case Sensitivity

Published Sep 6, 2026 · Updated Oct 8, 2026 · Assigned by VulnCheck

Description

PocketMine-MP before 4.0.3 does not perform case-insensitive matching when removing operator entries from ops.txt. The removeOp function lowercases the supplied name but only removes an exactly matching entry, so an operator name stored with non-lowercase letters cannot be revoked using the deop command, leaving the player as an operator until the entry is removed from ops.txt manually.

Affected products

VendorProductAffectedFixed
pmmp PocketMine-MP < 4.0.3 4.0.3

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist pocketmine/pocketmine-mp < 4.0.3 4.0.3 GHSA-j5qg-w9jg-3wg3

References