{"schema_version":1,"title":"MessagePack-CSharp vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 10 vulnerabilities in MessagePack-CSharp: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-48517, was published on 22 June 2026.","url":"https://junglewise.ai/threats/technologies/messagepack-csharp","json_url":"https://junglewise.ai/threats/technologies/messagepack-csharp.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/messagepack-csharp","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":10,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":10},"latest":[{"cve":"CVE-2026-48517","cvss":4,"epss":0.0035,"slug":"cve-2026-48517-messagepack-for-c-security-bypass-in-typeless-deserialization","title":"MessagePack for C# security bypass in typeless deserialization","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.623+00:00","url":"https://junglewise.ai/threats/cve-2026-48517-messagepack-for-c-security-bypass-in-typeless-deserialization"},{"cve":"CVE-2026-48516","cvss":4,"epss":0.0041,"slug":"cve-2026-48516-messagepack-for-c-hash-collision-dos-in-interfacelookupformatter","title":"MessagePack for C# hash-collision DoS in InterfaceLookupFormatter","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.49+00:00","url":"https://junglewise.ai/threats/cve-2026-48516-messagepack-for-c-hash-collision-dos-in-interfacelookupformatter"},{"cve":"CVE-2026-48515","cvss":4,"epss":0.0041,"slug":"cve-2026-48515-messagepack-for-c-resource-exhaustion-in-multi-dimensional-array","title":"MessagePack for C# resource exhaustion in multi-dimensional array formatters","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.36+00:00","url":"https://junglewise.ai/threats/cve-2026-48515-messagepack-for-c-resource-exhaustion-in-multi-dimensional-array"},{"cve":"CVE-2026-48514","cvss":4,"epss":0.0041,"slug":"cve-2026-48514-messagepack-for-c-denial-of-service-in-unsafeblitformatterbase","title":"MessagePack for C# denial of service in UnsafeBlitFormatterBase","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.23+00:00","url":"https://junglewise.ai/threats/cve-2026-48514-messagepack-for-c-denial-of-service-in-unsafeblitformatterbase"},{"cve":"CVE-2026-48513","cvss":4,"epss":0.0041,"slug":"cve-2026-48513-messagepack-for-c-uncontrolled-recursion-in-dynamicunionresolver","title":"MessagePack for C# uncontrolled recursion in DynamicUnionResolver","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.1+00:00","url":"https://junglewise.ai/threats/cve-2026-48513-messagepack-for-c-uncontrolled-recursion-in-dynamicunionresolver"},{"cve":"CVE-2026-48512","cvss":4,"epss":0.0041,"slug":"cve-2026-48512-messagepack-for-c-uncontrolled-recursion-in-json-conversion","title":"MessagePack for C# uncontrolled recursion in JSON conversion helpers","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:47.97+00:00","url":"https://junglewise.ai/threats/cve-2026-48512-messagepack-for-c-uncontrolled-recursion-in-json-conversion"},{"cve":"CVE-2026-48511","cvss":7.5,"epss":0.0041,"slug":"cve-2026-48511-messagepack-for-c-denial-of-service-in-expandoobjectformatter","title":"MessagePack for C# denial of service in ExpandoObjectFormatter","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:47.84+00:00","url":"https://junglewise.ai/threats/cve-2026-48511-messagepack-for-c-denial-of-service-in-expandoobjectformatter"},{"cve":"CVE-2026-48510","cvss":7.5,"epss":0.0041,"slug":"cve-2026-48510-messagepack-for-c-denial-of-service-via-lz4-decompression-bomb","title":"MessagePack for C# denial of service via LZ4 decompression bomb","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:47.713+00:00","url":"https://junglewise.ai/threats/cve-2026-48510-messagepack-for-c-denial-of-service-via-lz4-decompression-bomb"},{"cve":"CVE-2026-48509","cvss":4,"epss":0.0042,"slug":"cve-2026-48509-messagepack-for-c-insecure-default-in-messagepackinputformatter","title":"MessagePack for C# insecure default in MessagePackInputFormatter","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:47.573+00:00","url":"https://junglewise.ai/threats/cve-2026-48509-messagepack-for-c-insecure-default-in-messagepackinputformatter"},{"cve":"CVE-2026-48506","cvss":7.5,"epss":0.0047,"slug":"cve-2026-48506-messagepack-for-c-uncontrolled-recursion-in-messagepackreader","title":"MessagePack for C# uncontrolled recursion in MessagePackReader.TrySkip","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:47.437+00:00","url":"https://junglewise.ai/threats/cve-2026-48506-messagepack-for-c-uncontrolled-recursion-in-messagepackreader"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"MessagePack-CSharp MessagePack for C#","slug":"messagepack-for-c","vulnerabilities":11,"url":"https://junglewise.ai/threats/technologies/messagepack-for-c"}],"technology":{"hub":true,"name":"MessagePack-CSharp","slug":"messagepack-csharp","vendor":{"name":"MessagePack-CSharp","slug":"messagepack-csharp","url":"https://junglewise.ai/threats/vendors/messagepack-csharp"},"aliases":[],"category":"library","homepage":"https://github.com/neuecc/MessagePack-CSharp","repo_url":"https://github.com/neuecc/MessagePack-CSharp","description":"An extremely fast MessagePack serializer for C# and .NET.","url":"https://junglewise.ai/threats/technologies/messagepack-csharp"},"most_severe":[{"cve":"CVE-2026-48506","cvss":7.5,"epss":0.0047,"slug":"cve-2026-48506-messagepack-for-c-uncontrolled-recursion-in-messagepackreader","title":"MessagePack for C# uncontrolled recursion in MessagePackReader.TrySkip","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:47.437+00:00","url":"https://junglewise.ai/threats/cve-2026-48506-messagepack-for-c-uncontrolled-recursion-in-messagepackreader"},{"cve":"CVE-2026-48511","cvss":7.5,"epss":0.0041,"slug":"cve-2026-48511-messagepack-for-c-denial-of-service-in-expandoobjectformatter","title":"MessagePack for C# denial of service in ExpandoObjectFormatter","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:47.84+00:00","url":"https://junglewise.ai/threats/cve-2026-48511-messagepack-for-c-denial-of-service-in-expandoobjectformatter"},{"cve":"CVE-2026-48510","cvss":7.5,"epss":0.0041,"slug":"cve-2026-48510-messagepack-for-c-denial-of-service-via-lz4-decompression-bomb","title":"MessagePack for C# denial of service via LZ4 decompression bomb","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:47.713+00:00","url":"https://junglewise.ai/threats/cve-2026-48510-messagepack-for-c-denial-of-service-via-lz4-decompression-bomb"},{"cve":"CVE-2026-48509","cvss":4,"epss":0.0042,"slug":"cve-2026-48509-messagepack-for-c-insecure-default-in-messagepackinputformatter","title":"MessagePack for C# insecure default in MessagePackInputFormatter","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:47.573+00:00","url":"https://junglewise.ai/threats/cve-2026-48509-messagepack-for-c-insecure-default-in-messagepackinputformatter"},{"cve":"CVE-2026-48516","cvss":4,"epss":0.0041,"slug":"cve-2026-48516-messagepack-for-c-hash-collision-dos-in-interfacelookupformatter","title":"MessagePack for C# hash-collision DoS in InterfaceLookupFormatter","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.49+00:00","url":"https://junglewise.ai/threats/cve-2026-48516-messagepack-for-c-hash-collision-dos-in-interfacelookupformatter"},{"cve":"CVE-2026-48515","cvss":4,"epss":0.0041,"slug":"cve-2026-48515-messagepack-for-c-resource-exhaustion-in-multi-dimensional-array","title":"MessagePack for C# resource exhaustion in multi-dimensional array formatters","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.36+00:00","url":"https://junglewise.ai/threats/cve-2026-48515-messagepack-for-c-resource-exhaustion-in-multi-dimensional-array"},{"cve":"CVE-2026-48514","cvss":4,"epss":0.0041,"slug":"cve-2026-48514-messagepack-for-c-denial-of-service-in-unsafeblitformatterbase","title":"MessagePack for C# denial of service in UnsafeBlitFormatterBase","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.23+00:00","url":"https://junglewise.ai/threats/cve-2026-48514-messagepack-for-c-denial-of-service-in-unsafeblitformatterbase"},{"cve":"CVE-2026-48513","cvss":4,"epss":0.0041,"slug":"cve-2026-48513-messagepack-for-c-uncontrolled-recursion-in-dynamicunionresolver","title":"MessagePack for C# uncontrolled recursion in DynamicUnionResolver","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.1+00:00","url":"https://junglewise.ai/threats/cve-2026-48513-messagepack-for-c-uncontrolled-recursion-in-dynamicunionresolver"},{"cve":"CVE-2026-48512","cvss":4,"epss":0.0041,"slug":"cve-2026-48512-messagepack-for-c-uncontrolled-recursion-in-json-conversion","title":"MessagePack for C# uncontrolled recursion in JSON conversion helpers","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:47.97+00:00","url":"https://junglewise.ai/threats/cve-2026-48512-messagepack-for-c-uncontrolled-recursion-in-json-conversion"},{"cve":"CVE-2026-48517","cvss":4,"epss":0.0035,"slug":"cve-2026-48517-messagepack-for-c-security-bypass-in-typeless-deserialization","title":"MessagePack for C# security bypass in typeless deserialization","severity":"medium","exploited":false,"published_at":"2026-06-22T22:16:48.623+00:00","url":"https://junglewise.ai/threats/cve-2026-48517-messagepack-for-c-security-bypass-in-typeless-deserialization"}],"generated_at":"2026-09-26T18:07:00.158435+00:00"}