CVE-2026-20239 (GCVE-0-2026-20239)
Vulnerability from cvelistv5
Published
2026-05-20 16:32
Modified
2026-05-21 03:55
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-532 - Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.
Summary
In Splunk Enterprise versions below 10.2.2 and 10.0.5, and Splunk Cloud Platform versions below 10.3.2512.8, 10.2.2510.11, 10.1.2507.21, and 10.0.2503.13, a user with a role that has access to the `_internal` index could view session cookies and response bodies that contain sensitive data.
References
Impacted products
Vendor Product Version
Splunk Splunk Enterprise Version: 10.2   < 10.2.2
Version: 10.0   < 10.0.5
 Create a notification for this product.
   Splunk Splunk Cloud Platform Version: 10.3.2512   < 10.3.2512.8
Version: 10.2.2510   < 10.2.2510.11
Version: 10.1.2507   < 10.1.2507.21
Version: 10.0.2503   < 10.0.2503.13
 Create a notification for this product.
Show details on NVD website

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    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-20239",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-20T00:00:00+00:00",
                "version": "2.0.3"
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-21T03:55:38.324Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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      "credits": [
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        }
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      "metrics": [
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            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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      "providerMetadata": {
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        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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      "source": {
        "advisory": "SVD-2026-0503"
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      "title": "Sensitive Information Disclosure through Log Files in Splunk Enterprise"
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  "cveMetadata": {
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    "dateReserved": "2025-10-08T11:59:15.400Z",
    "dateUpdated": "2026-05-21T03:55:38.324Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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