msgpack 相關的公開 CVE 漏洞與安全風險資訊，提供 CVSS、EPSS、公開時間與漏洞情報資料，協助評估潛在風險與修補優先順序。
| CVE | 摘要 | 來源 | 最高 CVSS | EPSS % | 公開時間 | 更新時間 |
|---|---|---|---|---|---|---|
| CVE-2026-21452 | MessagePack for Java is a serializer implementation for Java. A denial-of-service vulnerability exists in versions prior to 0.9.11 when deserializing .msgpack files containing EXT32 objects with attacker-controlled payload lengths. While MessagePack-Java parses extension headers lazily, it later trusts the declared EXT payload length when materializing the extension data. When ExtensionValue.getData() is invoked, the library attempts to allocate a byte array of the declared length without enforc | [email protected] | 7.5 | 0.02% | 2026-01-02 | 2026-02-05 |