CVE-2026-48516 | MessagePack-CSharp MessagePack for C# up to 2.5.300/3.1.6 options.Security.GetEqualityComparer algorithmic complexity (GHSA-q2h6-ghwm-5qm8)

June 23, 2026 Yanac

A vulnerability classified as problematic has been found in MessagePack-CSharp MessagePack for C# up to 2.5.300/3.1.6. This affects the function options.Security.GetEqualityComparer. This manipulation causes inefficient algorithmic complexity.

This vulnerability is tracked as CVE-2026-48516. The attack is possible to be carried out remotely. No exploit exists.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More