FKIE_CVE-2026-20240

Vulnerability from fkie_nvd - Published: 2026-05-20 18:16 - Updated: 2026-05-21 19:40
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.11, and 9.3.12, and Splunk Cloud Platform versions below 10.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2507.21, 10.0.2503.13, and 9.3.2411.129, a low-privileged user that does not hold the ‘admin’ or ‘power’ Splunk roles could cause a Denial of Service by exploiting the `coldToFrozen.sh` script in the `splunk_archiver` app to rename critical Splunk directories, making the instance non-functional.<br><br>The Denial of Service is possible because of missing input validation in the `coldToFrozen.sh` script, which accepts arbitrary file paths and renames them without restricting operations to safe directories.
References
psirt@cisco.comhttps://advisory.splunk.com/advisories/SVD-2026-0504Vendor Advisory
Impacted products
Vendor Product Version
splunk splunk *
splunk splunk *
splunk splunk *
splunk splunk *
splunk splunk_cloud_platform *
splunk splunk_cloud_platform *
splunk splunk_cloud_platform *
splunk splunk_cloud_platform *
splunk splunk_cloud_platform *
splunk splunk_cloud_platform 10.4.2603
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  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.11, and 9.3.12, and Splunk Cloud Platform versions below 10.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2507.21, 10.0.2503.13, and 9.3.2411.129, a low-privileged user that does not hold the \u2018admin\u2019 or \u2018power\u2019 Splunk roles could cause a Denial of Service by exploiting the `coldToFrozen.sh` script in the `splunk_archiver` app to rename critical Splunk directories, making the instance non-functional.\u003cbr\u003e\u003cbr\u003eThe Denial of Service is possible because of missing input validation in the `coldToFrozen.sh` script, which accepts arbitrary file paths and renames them without restricting operations to safe directories."
    }
  ],
  "id": "CVE-2026-20240",
  "lastModified": "2026-05-21T19:40:59.380",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
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        "type": "Primary"
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  "published": "2026-05-20T18:16:26.637",
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          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Primary"
    }
  ]
}


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