CVE-2026-45289

MEDIUM

CloudburstMC Protocol: Partially missing validation for FULL type authentication tokens

Title source: cna
STIX 2.1

Description

CloudburstMC Protocol is a protocol library for Minecraft Bedrock Edition. Prior to version 3.0.0.Beta12-20260420.182526-15, CloudburstMC Protocol is partially missing validation for FULL type authentication tokens (Cloudburst/Protocol). This vulnerability impacts publicly accessible software depending on the affected versions of Protocol, specifically the EncryptionUtils methods to validate auth payloads for FULL type tokens. This issue has been patched in version 3.0.0.Beta12-20260420.182526-15.

References (1)

Core 1
Core References

Scores

CVSS v3 5.3
EPSS 0.0014
EPSS Percentile 3.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-287
Status published
Products (1)
CloudburstMC/Protocol < 3.0.0.Beta12-20260420.182526-15
Published Jun 02, 2026
Tracked Since Jun 03, 2026