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Newtonsoft.Json, newtonsoft.json — security advisory

Type: advisorySources: OSVAdvisory ID: ECHO-b343-99af-a20d

This notice tracks CVE-2024-21907 for Newtonsoft.Json, newtonsoft.json. Fixed versions are listed in the package details.

Products
Newtonsoft.Json, newtonsoft.json
Affected versions
Not specified
Fixed versions
10.0.1+echo.1, 13.0.1
CVEs
CVE-2024-21907
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 16:42 UTC · Revision 1

Source evidence

ECHO-b343-99af-a20d

core-osv · Original source

Published 17 Sept 2026, 08:05 UTC

ECHO-b343-99af-a20d

osv:ECHO-b343-99af-a20d

newtonsoft.json

Fixed versions: 13.0.1

Newtonsoft.Json

Fixed versions: 10.0.1+echo.1

Complete source record
{
  "id": "6d94370ea071c6ae0cdd3d432545bb4bea30d58e3837eb5c553981280e3926ea",
  "url": "https://osv.dev/vulnerability/ECHO-b343-99af-a20d",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ECHO-b343-99af-a20d",
    "summary": "ECHO-b343-99af-a20d",
    "evidence": "osv:ECHO-b343-99af-a20d",
    "products": [
      {
        "name": {
          "value": "newtonsoft.json",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "13.0.1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "Newtonsoft.Json",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "10.0.1+echo.1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "ECHO-b343-99af-a20d",
      "aliases": [
        "ECHO-b343-99af-a20d"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "13.0.1"
                }
              ]
            }
          ],
          "package": {
            "name": "newtonsoft.json",
            "purl": "pkg:nuget/newtonsoft.json",
            "ecosystem": "Echo:NuGet"
          },
          "database_specific": {
            "source": "https://advisory.echohq.com/osv/ECHO-b343-99af-a20d.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "10.0.1+echo.1"
                }
              ]
            }
          ],
          "package": {
            "name": "Newtonsoft.Json",
            "purl": "pkg:nuget/Newtonsoft.Json",
            "ecosystem": "Echo:NuGet"
          },
          "database_specific": {
            "source": "https://advisory.echohq.com/osv/ECHO-b343-99af-a20d.json"
          }
        }
      ],
      "modified": "2026-10-22T00:45:06.645283340Z",
      "provider": "osv",
      "upstream": [
        "CVE-2024-21907",
        "GHSA-5crp-9r3c-p9vr"
      ],
      "references": [
        "https://advisory.echohq.com/cve/CVE-2024-21907",
        "https://github.com/advisories/GHSA-5crp-9r3c-p9vr"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2024-21907",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 401214,
  "published_at": "2026-09-17T08:05:27.486+00:00"
}