UnratedFix available

MessagePack-CSharp v3.1.11 security fix

Type: patchSources: MessagePack for C#

MessagePack-CSharp v3.1.11 fixes an integer overflow bug in LZ4 decompression.

Products: MessagePack-CSharp
Affected versions: Not specified
Fixed versions: v3.1.11
CVEs: Not specified
Confirmed fixed CVEs: Not specified
Updated in this feed: 29 Oct 2026, 05:45 UTC · Revision 1

Source evidence

MessagePack-CSharp v3.1.11 security fix

github-messagepack-csharp-messagepack-csharp · Original source

Published 3 Oct 2026, 22:29 UTC

MessagePack-CSharp v3.1.11 fixes an integer overflow bug in LZ4 decompression.

Security fix Fix LZ4 decompression integer overflow bug

MessagePack-CSharp

Fixed versions: v3.1.11

Complete source record

{
  "id": "c22c838130116d33f04db9c71febcd671b7e8abf6b128145f183c7f692cb12d3",
  "url": "https://github.com/MessagePack-CSharp/MessagePack-CSharp/releases/tag/v3.1.11",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "MessagePack-CSharp v3.1.11 security fix",
    "summary": "MessagePack-CSharp v3.1.11 fixes an integer overflow bug in LZ4 decompression.",
    "evidence": "Security fix Fix LZ4 decompression integer overflow bug",
    "products": [
      {
        "name": {
          "value": "MessagePack-CSharp",
          "evidence": "Release notes from MessagePack-CSharp"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "v3.1.11",
            "evidence": "v3.1.11"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "github-messagepack-csharp-messagepack-csharp",
  "document_id": 21752,
  "published_at": "2026-10-03T22:29:01+00:00"
}