CVE-2026-115289

Full vulnerability record from the local CVENow database.

Description

Use of Multiple Resources with Duplicate Identifier (CWE-694) in APM Server can lead to information disclosure via a specially crafted agent configuration request. An authenticated APM agent could receive the central agent configuration that belongs to a different service until the cached configuration expires. A service could also run with central configuration settings, such as sampling settings, that were meant for a different service.

Severity

MEDIUM

CVSS score

4.3 (v3.1)

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-03 17:17:54.783000

Last modified

2026-11-03 18:17:51.983000

View original CVE JSON

{
  "id": "CVE-2026-115289",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-03T17:17:54.783",
  "lastModified": "2026-11-03T18:17:51.983",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use of Multiple Resources with Duplicate Identifier (CWE-694) in APM Server can lead to information disclosure via a specially crafted agent configuration request. An authenticated APM agent could receive the central agent configuration that belongs to a different service until the cached configuration expires. A service could also run with central configuration settings, such as sampling settings, that were meant for a different service."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Elastic",
          "product": "APM Server",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8.0.0",
              "lessThanOrEqual": "8.19.23",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "9.0.0",
              "lessThanOrEqual": "9.4.8",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "9.5.0",
              "lessThanOrEqual": "9.5.5",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-11-03T17:36:32.290044Z",
          "id": "CVE-2026-115289",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-694"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://discuss.elastic.co/t/apm-server-8-19-24-9-4-9-9-5-6-security-update-esa-2026-200/391355",
      "source": "[email protected]"
    }
  ]
}