{
  "affected": [
    {
      "affectedData": [
        {
          "product": "opentelemetry-dotnet",
          "vendor": "open-telemetry",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.6.0-rc.1"
            }
          ]
        },
        {
          "product": "OpenTelemetry.Exporter.Jaeger",
          "vendor": "open-telemetry",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.6.0-rc.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:.net:*:*",
              "matchCriteriaId": "56927593-8DEA-46DF-99FB-150F00796ED8",
              "versionEndExcluding": "1.6.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:alpha1:*:*:*:.net:*:*",
              "matchCriteriaId": "13631A96-4D58-461F-9264-64DBD3BAF413",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:beta1:*:*:*:.net:*:*",
              "matchCriteriaId": "7D986355-87A6-4E57-9459-12F757E5773A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:beta2:*:*:*:.net:*:*",
              "matchCriteriaId": "48A81080-CF53-4EA9-A98B-55F7016D8D72",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:beta3:*:*:*:.net:*:*",
              "matchCriteriaId": "624E213B-E94A-4A6E-AD8F-45F0007B6D5A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry:1.6.0:rc1:*:*:*:.net:*:*",
              "matchCriteriaId": "AD841242-43F8-4A7D-B9DC-9BFE0953C675",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenTelemetry dotnet is a dotnet telemetry framework. In 1.6.0-rc.1 and earlier, OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set and that enlarged size is reused for subsequent allocations. Under high-cardinality or attacker-influenced telemetry input, this can increase memory consumption and potentially cause denial of service. There is no plan to fix this issue as OpenTelemetry.Exporter.Jaeger was deprecated in 2023."
    }
  ],
  "id": "CVE-2026-41078",
  "lastModified": "2026-06-17T10:46:08.023",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-41078",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-23T18:52:04.471326Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-23T19:17:28.950",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-38h3-2333-qx47"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}