CVE-2026-45289

MEDIUM EPSS 3.7%

Published Jun 2, 20261mo ago · Modified Jun 17, 20262w ago

5.3 CVSS 3.1

Medium

Published Jun 2, 2026 1mo ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

5.3

Exploitability

3.9

Impact

1.4

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality None

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

3.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-287 Improper Authentication Authentication

References 1

github.com https://github.com/CloudburstMC/Protocol/security/advisories/GHSA-g2fr-c75x-4hf9

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.