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.
- No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Exploitation momentum
2 days of EPSSCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L- 07 Jul 2026Published to NVD
- 08 Jul 2026Last modified
ATT&CK techniques
1Techniques this CVE enables. Pills with a solid outline are high confidence - named directly in ATT&CK or Nuclei, or human-curated by CTID; the rest are inferred from the weakness type using MITRE's CVE Mapping Methodology and the CWE → CAPEC chain. Broad, generic-weakness guesses are filtered out. A small N× marks a technique that N independent sources agree on.
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