CVE-2026-44375 - Nerdbank.MessagePack: Attacker-controlled stackalloc in DateTime decoding causes process-terminating StackOverflowException

CVE-2026-44375 - Nerdbank.MessagePack: Attacker-controlled stackalloc in DateTime decoding causes process-terminating StackOverflowException

https://cvefeed.io/rssfeed/latest.atom / Thu, 05/14/2026 - 17:23
CVE ID :CVE-2026-44375
Published : May 14, 2026, 2:32 p.m. | 51 minutes ago
Description :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.
Severity: 0.0 | NA
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