{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-40894",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-40894",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-23T18:03:28.211Z",
    "updatedAt": "2026-04-23T19:22:47.268Z",
    "importedAt": "2026-10-24T01:58:08.712Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "OpenTelemetry dotnet: Excessive memory allocation when parsing OpenTelemetry propagation headers",
      "summary": "OpenTelemetry dotnet is a dotnet telemetry framework. In OpenTelemetry.Api 0.5.0-beta.2 to 1.15.2 and OpenTelemetry.Extensions.Propagators 1.3.1 to 1.15.2, The implementation details of the baggage, B3 and Jaeger processing code in the OpenTelemetry.Api and OpenTelemetry.Extensions.Propagators NuGet packages can allocate excessive memory when parsing which could create a potential denial of service (DoS) in the consuming application. This vulnerability is fixed in 1.15.3.",
      "affected": [
        {
          "vendor": "open-telemetry",
          "product": "opentelemetry-dotnet",
          "versions": [
            {
              "version": ">= 0.5.0-beta.2, < 1.15.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "open-telemetry",
          "product": "OpenTelemetry.Api",
          "versions": [
            {
              "version": ">= 0.5.0-beta.2, < 1.15.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "open-telemetry",
          "product": "OpenTelemetry.Extensions.Propagators",
          "versions": [
            {
              "version": ">= 1.3.1, < 1.15.3",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}