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2.5.2
Compatibility
Changes
v2.5.2 - Critical Security & Stability Update
🛡️ CRITICAL SECURITY FIX
Patched Double Purchase Item Duplication Exploit
Fixed a critical vulnerability where multiple players could purchase the same auction item simultaneously, allowing item duplication and economic exploitation.
What Was Fixed:
- Multi-purchase exploit: Players could spam-click to buy the same auction item
- Seller overpayment: Sellers received multiple payments for a single item
- Item duplication: Buyers could duplicate items through concurrent purchases
- Economic instability: Server economy could be unfairly manipulated
Technical Changes:
- Implemented Atomic Reservation Pattern - items are reserved before currency transfer
- Added Optimistic Locking - prevents concurrent purchases with version checking
- Enhanced Automatic Rollback - auctions revert to ACTIVE status if transactions fail
- Improved Thread-Safe Operations - inventory operations moved to main thread
- Added Clear Error Feedback - users receive explicit messages for failed purchases
Update Recommendation: ⚠️ IMMEDIATE UPDATE REQUIRED - This fix addresses a severe game-breaking exploit.
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle. To learn more about the Modrinth Maven API, click here.
Note: When available, you should use the creator's maven repo instead as it will have transitive dependency information that the Modrinth Maven API does not. You may also end up with duplicate dependencies if you use a mix of Modrinth and non-Modrinth Maven repositories for your dependencies, because the group identifier will be different when served through the Modrinth Maven API.
Maven coordinates:
Version ID:
build.gradle:
repositories {
exclusiveContent {
forRepository {
maven {
name = "Modrinth"
url = "https://api.modrinth.com/maven"
}
}
// forRepositories(fg.repository) // Uncomment when using ForgeGradle
filter {
includeGroup "maven.modrinth"
}
}
}
// Standard Gradle dependency
dependencies {
implementation "maven.modrinth:Mp3J39aH:hcSuO2GT"
}
// Legacy Loom dependency
dependencies {
modImplementation "maven.modrinth:Mp3J39aH:hcSuO2GT"
}

