CVE-2026-41310

{
  "id": "CVE-2026-41310",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-06T22:16:25.643",
  "lastModified": "2026-10-26T19:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenTelemetry.Exporter.Zipkin is the .NET Zipkin exporter for OpenTelemetry. In versions 1.15.2 and earlier, the Zipkin exporter remote endpoint cache accepts unbounded key growth derived from span attributes. In high-cardinality scenarios, a process using Zipkin export for client or producer spans could experience avoidable memory growth under sustained unique remote endpoint values, increasing process memory usage over time and degrading availability. This issue is fixed in version 1.15.3, which introduces a bounded, thread-safe LRU cache for remote endpoints with a fixed maximum size."
    },
    {
      "lang": "es",
      "value": "OpenTelemetry.Exporter.Zipkin es el exportador Zipkin de .NET para OpenTelemetry. En las versiones 1.15.2 y anteriores, la caché de puntos finales remotos del exportador Zipkin acepta un crecimiento ilimitado de claves derivado de los atributos de span. En escenarios de alta cardinalidad, un proceso que utiliza la exportación de Zipkin para spans de cliente o productor podría experimentar un crecimiento evitable de la memoria bajo valores de puntos finales remotos únicos y sostenidos, aumentando el uso de memoria del proceso con el tiempo y degradando la disponibilidad. Este problema se corrige en la versión 1.15.3, que introduce una caché LRU acotada y segura para hilos para puntos finales remotos con un tamaño máximo fijo."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "open-telemetry",
          "product": "opentelemetry-dotnet",
          "versions": [
            {
              "version": "<= 1.15.2",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-07T13:18:40.344332Z",
          "id": "CVE-2026-41310",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:opentelemetry:opentelemetry.exporter.zipkin:*:*:*:*:*:.net:*:*",
              "versionEndExcluding": "1.15.3",
              "matchCriteriaId": "88FCC724-04D2-4E6A-9E07-8375E9E862DB"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/7081",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-88hf-wf7h-7w4m",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}