AArnott/Nerdbank.MessagePack

AArnott/Nerdbank.MessagePack

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GitHubgithub.com
aarnott.github.ioaarnott.github.io
Releases75
Frequency1 week 13 hours
Last Release
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A feature-packed .NET MessagePack serialization library with great performance and simplicity. msgpack.io[C#]
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CVE History

CVEPublishedCVSS v3CVSS v2
CVE-2026-44375↗
7.5 HIGH—

Nerdbank.MessagePack is a NativeAOT-compatible MessagePack serialization library. Prior to 1.1.62, Nerdbank.MessagePack contains an uncontrolled stack allocation vulnerability in DateTime decoding. A malicious MessagePack payload can declare an oversized timestamp extension length, causing the reader to allocate an attacker-controlled number of bytes on the stack. This can trigger a StackOverflowException, which is not catchable by user code and terminates the process. This vulnerability is fixed in 1.1.62.