CVE-2026-45289 — CloudburstMC Protocol: Partially missing validation for FULL type authentication tokens

CVE-2026-45289

CloudburstMC Protocol: Partially missing validation for FULL type authentication tokens PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
CloudburstMC / Protocol	affected < 3.0.0.Beta12-20260420.182526-15

CWE

CWE-287

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.