CVE-2026-107296 | BDVDB-2026-384739 Detail

Description#

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.

Impact#

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History#

1. Version 12026-10-08Record published in the CVE List.
2. Version 22026-10-14Most recent update recorded in the CVE List.