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    2 vulnerabilities found for OpenTelemetry.Extensions.Propagators by open-telemetry

    CVE-2026-40894 (GCVE-0-2026-40894)

    Vulnerability from nvd – Published: 2026-04-23 18:03 – Updated: 2026-04-23 19:22
    VLAI
    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.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-789 - Memory Allocation with Excessive Size Value
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
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                "id": "CVE-2026-40894",
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                "timestamp": "2026-04-23T19:22:40.530419Z",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    "cna": {
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          "product": "opentelemetry-dotnet",
          "vendor": "open-telemetry",
          "versions": [
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              "status": "affected",
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          "product": "OpenTelemetry.Api",
          "vendor": "open-telemetry",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 0.5.0-beta.2, \u003c 1.15.3"
            }
          ]
        },
        {
          "product": "OpenTelemetry.Extensions.Propagators",
          "vendor": "open-telemetry",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.3.1, \u003c 1.15.3"
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      ],
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          "value": "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."
        }
      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
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            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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              "type": "CWE"
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          ]
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      ],
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        },
        {
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      "title": "OpenTelemetry dotnet: Excessive memory allocation when parsing OpenTelemetry propagation headers"
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    CVE-2026-40894 (GCVE-0-2026-40894)

    Vulnerability from cvelistv5 – Published: 2026-04-23 18:03 – Updated: 2026-04-23 19:22
    VLAI
    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.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-789 - Memory Allocation with Excessive Size Value
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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                "timestamp": "2026-04-23T19:22:40.530419Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "product": "opentelemetry-dotnet",
          "vendor": "open-telemetry",
          "versions": [
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              "status": "affected",
              "version": "\u003e= 0.5.0-beta.2, \u003c 1.15.3"
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        }
      ],
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            "attackVector": "NETWORK",
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