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CVE-2026-40894

Estado: AnalizadaMedia (5.3)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

Opentelemetry — OpentelemetryOpentelemetry — Opentelemetry.apiOpentelemetry — Opentelemetry.extensions.propagators

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-40894",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-40894",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-23T19:22:40.530419Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "open-telemetry",
          "product": "opentelemetry-dotnet",
          "versions": [
            {
              "status": "affected",
              "version": ">= 0.5.0-beta.2, < 1.15.3"
            }
          ]
        },
        {
          "vendor": "open-telemetry",
          "product": "OpenTelemetry.Api",
          "versions": [
            {
              "status": "affected",
              "version": ">= 0.5.0-beta.2, < 1.15.3"
            }
          ]
        },
        {
          "vendor": "open-telemetry",
          "product": "OpenTelemetry.Extensions.Propagators",
          "versions": [
            {
              "status": "affected",
              "version": ">= 1.3.1, < 1.15.3"
            }
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        }
      ]
    }
  ],
  "published": "2026-04-23T19:17:28.810",
  "references": [
    {
      "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/1048",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3244",
      "tags": [
        "Issue Tracking",
        "Patch"
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      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3309",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/533",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/7061",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-g94r-2vxg-569j",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-789"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "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."
    }
  ],
  "lastModified": "2026-06-17T10:45:50.477",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:.net:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7CF8EB09-F7C5-49FA-BE45-15C9D6ACAE68",
              "versionEndExcluding": "1.15.3",
              "versionStartIncluding": "0.5.0"
            },
            {
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry.api:*:*:*:*:*:.net:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F4494846-0F47-4868-8315-76F82BA431CA",
              "versionEndExcluding": "1.15.3",
              "versionStartIncluding": "0.5.0"
            },
            {
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry.extensions.propagators:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FD34268F-5D62-4ACF-9E83-22DA39B5B7F3",
              "versionEndExcluding": "1.15.3",
              "versionStartExcluding": "1.3.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}