CVE-2024-56141

Minosoft is an open-source, multi-version Minecraft Java Edition client written in Kotlin. Starting in commit f1ae30e2b046a490026a8413b075685deb795122, the CryptManager encryption routine ( CryptManager.kt ) initializes its AES cipher using an initialization vector (IV) that is set equal to the secret key rather than to a sufficiently random value. Because the IV is not random and is derived directly from the key, the encryption is vulnerable to chosen-ciphertext/chosen-plaintext attacks: an attacker who can submit specific messages for encryption can recover the secret key. This affects all versions supporting Minecraft protocol 1.7 and later. No patched version is available, and no known workarounds are available.

CVSS v3 5.0 MEDIUM

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/Bixilon/Minosoft/blob/3a608abe2d0999e4e702cc1b2d28366884c7f31e/src/main/java/de/bixilon/minosoft/protocol/protocol/encryption/CryptManager.kt#L72
https://github.com/Bixilon/Minosoft/security/advisories/GHSA-rvr6-48rj-c94j

Configurations

No configuration.

History

07 Jul 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-07 00:16

Updated : 2026-07-08 20:16

NVD link : CVE-2024-56141

Mitre link : CVE-2024-56141

CVE.ORG link : CVE-2024-56141

JSON object : View

Products Affected

No product.

CWE

CWE-329

Generation of Predictable IV with CBC Mode

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