{"schema_version":1,"title":"MessagePack (NuGet) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 15 vulnerabilities in MessagePack (NuGet): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-92707, was published on 15 October 2026. 1 vulnerability in the last four weeks, up from none in the four before.","url":"https://junglewise.ai/threats/technologies/messagepack","json_url":"https://junglewise.ai/threats/technologies/messagepack.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","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":false,"counts":{"high":5,"all_time":15,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":1,"last_90_days":1,"last_365_days":13},"latest":[{"cve":"CVE-2026-92707","cvss":5.3,"epss":0.0065,"slug":"cve-2026-92707-messagepack-nested-arrays-can-blow-past-buffer-length-limits","title":"MessagePack-CSharp memory exhaustion in nested array deserialization","severity":"medium","exploited":false,"published_at":"2026-10-15T18:35:46+00:00","url":"https://junglewise.ai/threats/cve-2026-92707-messagepack-nested-arrays-can-blow-past-buffer-length-limits"},{"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"},{"cve":"CVE-2026-48502","cvss":4,"epss":0.0044,"slug":"cve-2026-48502-messagepack-for-c-stack-overflow-in-messagepackreader","title":"MessagePack for C# stack overflow in MessagePackReader.ReadDateTime","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:47.147+00:00","url":"https://junglewise.ai/threats/cve-2026-48502-messagepack-for-c-stack-overflow-in-messagepackreader"},{"cve":"CVE-2026-48109","cvss":8.2,"epss":0.0051,"slug":"cve-2026-48109-messagepack-for-c-out-of-bounds-read-in-lz4-decompression","title":"MessagePack for C# out-of-bounds read in LZ4 decompression","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:46.617+00:00","url":"https://junglewise.ai/threats/cve-2026-48109-messagepack-for-c-out-of-bounds-read-in-lz4-decompression"},{"cve":"CVE-2024-48924","epss":0.0037,"slug":"cve-2024-48924-messagepack-allows-untrusted-data-to-lead-to-dos-attack-due-to","title":"MessagePack allows untrusted data to lead to DoS attack due to hash collisions and stack overflow","severity":"info","exploited":false,"published_at":"2024-10-17T19:30:03+00:00","url":"https://junglewise.ai/threats/cve-2024-48924-messagepack-allows-untrusted-data-to-lead-to-dos-attack-due-to"},{"cve":"CVE-2020-5234","cvss":3.1,"epss":0.0158,"slug":"cve-2020-5234-untrusted-data-can-lead-to-dos-attack-due-to-hash-collisions-and","title":"Untrusted data can lead to DoS attack due to hash collisions and stack overflow in MessagePack","severity":"low","exploited":false,"published_at":"2020-01-31T17:59:20+00:00","url":"https://junglewise.ai/threats/cve-2020-5234-untrusted-data-can-lead-to-dos-attack-due-to-hash-collisions-and"}],"weekly":[{"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},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Microsoft.ChakraCore (NuGet)","slug":"microsoft-chakracore","vulnerabilities":247,"url":"https://junglewise.ai/threats/technologies/microsoft-chakracore"},{"name":"Magick.NET-Q16-AnyCPU (NuGet)","slug":"magick-net-q16-anycpu","vulnerabilities":167,"url":"https://junglewise.ai/threats/technologies/magick-net-q16-anycpu"},{"name":"Magick.NET-Q16-HDRI-AnyCPU (NuGet)","slug":"magick-net-q16-hdri-anycpu","vulnerabilities":162,"url":"https://junglewise.ai/threats/technologies/magick-net-q16-hdri-anycpu"},{"name":"Magick.NET-Q8-AnyCPU (NuGet)","slug":"magick-net-q8-anycpu","vulnerabilities":162,"url":"https://junglewise.ai/threats/technologies/magick-net-q8-anycpu"},{"name":"Magick.NET-Q16-HDRI-x86 (NuGet)","slug":"magick-net-q16-hdri-x86","vulnerabilities":160,"url":"https://junglewise.ai/threats/technologies/magick-net-q16-hdri-x86"},{"name":"Magick.NET-Q8-x86 (NuGet)","slug":"magick-net-q8-x86","vulnerabilities":160,"url":"https://junglewise.ai/threats/technologies/magick-net-q8-x86"},{"name":"Magick.NET-Q16-x86 (NuGet)","slug":"magick-net-q16-x86","vulnerabilities":159,"url":"https://junglewise.ai/threats/technologies/magick-net-q16-x86"},{"name":"Magick.NET-Q16-arm64 (NuGet)","slug":"magick-net-q16-arm64","vulnerabilities":157,"url":"https://junglewise.ai/threats/technologies/magick-net-q16-arm64"},{"name":"Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet)","slug":"magick-net-q16-hdri-openmp-arm64","vulnerabilities":157,"url":"https://junglewise.ai/threats/technologies/magick-net-q16-hdri-openmp-arm64"},{"name":"Magick.NET-Q16-HDRI-x64 (NuGet)","slug":"magick-net-q16-hdri-x64","vulnerabilities":157,"url":"https://junglewise.ai/threats/technologies/magick-net-q16-hdri-x64"},{"name":"Magick.NET-Q16-OpenMP-arm64 (NuGet)","slug":"magick-net-q16-openmp-arm64","vulnerabilities":157,"url":"https://junglewise.ai/threats/technologies/magick-net-q16-openmp-arm64"},{"name":"Magick.NET-Q16-OpenMP-x64 (NuGet)","slug":"magick-net-q16-openmp-x64","vulnerabilities":157,"url":"https://junglewise.ai/threats/technologies/magick-net-q16-openmp-x64"}],"technology":{"hub":true,"name":"MessagePack (NuGet)","slug":"messagepack","vendor":{"hub":true,"name":"NuGet","slug":"nuget","url":"https://junglewise.ai/threats/vendors/nuget"},"aliases":[],"homepage":"https://msgpack.org/","repo_url":"https://github.com/msgpack/msgpack","description":"An efficient binary serialization format that lets you exchange data among multiple languages like JSON.","url":"https://junglewise.ai/threats/technologies/messagepack"},"most_severe":[{"cve":"CVE-2026-48109","cvss":8.2,"epss":0.0051,"slug":"cve-2026-48109-messagepack-for-c-out-of-bounds-read-in-lz4-decompression","title":"MessagePack for C# out-of-bounds read in LZ4 decompression","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:46.617+00:00","url":"https://junglewise.ai/threats/cve-2026-48109-messagepack-for-c-out-of-bounds-read-in-lz4-decompression"},{"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-2026-48502","cvss":4,"epss":0.0044,"slug":"cve-2026-48502-messagepack-for-c-stack-overflow-in-messagepackreader","title":"MessagePack for C# stack overflow in MessagePackReader.ReadDateTime","severity":"high","exploited":false,"published_at":"2026-06-22T22:16:47.147+00:00","url":"https://junglewise.ai/threats/cve-2026-48502-messagepack-for-c-stack-overflow-in-messagepackreader"},{"cve":"CVE-2026-92707","cvss":5.3,"epss":0.0065,"slug":"cve-2026-92707-messagepack-nested-arrays-can-blow-past-buffer-length-limits","title":"MessagePack-CSharp memory exhaustion in nested array deserialization","severity":"medium","exploited":false,"published_at":"2026-10-15T18:35:46+00:00","url":"https://junglewise.ai/threats/cve-2026-92707-messagepack-nested-arrays-can-blow-past-buffer-length-limits"},{"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"}],"generated_at":"2026-11-09T03:07:00.176479+00:00"}