Vulnerabilidades do Npm Msgpack5
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CVEs publicadas que afetam Npm Msgpack5: 2 registro(s), com versões afetadas e correções.
CVE-2026-107301
Média · 6.5
CWE-1321 08/10/2026
msgpack5: Partial options disable prototype protection
msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, constructing msgpack5 with an empty or partial options object disables the default protoAction: 'error' protection. A decoded map containing a __proto__ key can then replace the decoded object's prototype, potentially changing inherited properties or downstream behavior, although Object.prototype is not modified globally. This issue is fixed in version 6.1.0.
CVE-2026-107296
Baixa · 3.7
CWE-471 08/10/2026
msgpack5: Decoding negative int64 values mutates the input buffer
msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer while computing the value. Applications that retain or reuse encoded input for integrity checks, logging, or later processing can observe silently corrupted data, while positive integers and other MessagePack value types are unaffected. This issue is fixed in version 6.1.0.