This page aggregates publicly disclosed CVE and security risk information related to msgpack, with CVSS, EPSS, publication dates, and vulnerability intelligence data to help assess potential risk and remediation priority.
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| 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 | 0.55% | 2026-01-02 | 2026-06-17 |