EUVD-2026-102315Published
MessagePack: Nested arrays can blow past buffer length limits
Explicit identifiers and source references
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-92707 · Microsoft / collected KEV context
cve-program · CVE-2026-92707
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-qhrr-8q5h-9q3h
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/commit/7fd78bbf3476e03beae8b0f7a521125525a8a64a
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/commit/95b63fca4f7097d3cac12d1a95286af4b4bbf02c
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/releases/tag/v2.5.303
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/releases/tag/v3.1.9
euvd · EUVD-2026-102315
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-qhrr-8q5h-9q3h
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/commit/7fd78bbf3476e03beae8b0f7a521125525a8a64a
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/commit/95b63fca4f7097d3cac12d1a95286af4b4bbf02c
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/releases/tag/v2.5.303
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/releases/tag/v3.1.9
nvd · CVE-2026-92707
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/commit/7fd78bbf3476e03beae8b0f7a521125525a8a64a
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/commit/95b63fca4f7097d3cac12d1a95286af4b4bbf02c
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/releases/tag/v2.5.303
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/releases/tag/v3.1.9
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-qhrr-8q5h-9q3h
osv · GHSA-qhrr-8q5h-9q3h
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-qhrr-8q5h-9q3h
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/commit/7fd78bbf3476e03beae8b0f7a521125525a8a64a
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/commit/95b63fca4f7097d3cac12d1a95286af4b4bbf02c
- https://github.com/MessagePack-CSharp/MessagePack-CSharp
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/releases/tag/v2.5.303
- https://github.com/MessagePack-CSharp/MessagePack-CSharp/releases/tag/v3.1.9
Related operational evidence
Explicit CVE identifiers- MessagePack for C# is a MessagePack serializer for C#. Prior to 2.5.303 and 3.1.9, deserializing attacker-controlled MessagePack data as System.Object through PrimitiveObjectFormatter can cause excessive memory allocation. The formatter all… · Advisory content revised · 7 Nov 2026
- MessagePack for C# is a MessagePack serializer for C#. Prior to 2.5.303 and 3.1.9, deserializing attacker-controlled MessagePack data as System.Object through PrimitiveObjectFormatter can cause excessive memory allocation. The formatter all… · Advisory content revised · 1 Nov 2026