Vulnerability-Lookup

GHSA-GJ97-4W7H-79J2

Vulnerability from github – Published: 2026-04-15 18:31 – Updated: 2026-04-15 18:31

Details

In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the admin or power Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the $SPLUNK_HOME/var/run/splunk/apptemp directory due to improper handling and insufficient isolation of temporary files within the apptemp directory.

Severity

7.1 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-20204"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-377"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-15T16:16:34Z",
    "severity": "HIGH"
  },
  "details": "In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory.",
  "id": "GHSA-gj97-4w7h-79j2",
  "modified": "2026-04-15T18:31:57Z",
  "published": "2026-04-15T18:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20204"
    },
    {
      "type": "WEB",
      "url": "https://advisory.splunk.com/advisories/SVD-2026-0403"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-20204 (GCVE-0-2026-20204)

Vulnerability from cvelistv5 – Published: 2026-04-15 15:17 – Updated: 2026-04-16 03:55

Title

Improper Handling and Insufficient Isolation of Specific Temporary Files in Splunk Enterprise

Summary

In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-15 00:00 UTC

CWE

CWE-377 - Creating and using insecure temporary files can leave application and system data vulnerable to attack.

Assigner

cisco mitre root Scorecard

References

1 reference

URL	Tags
https://advisory.splunk.com/advisories/SVD-2026-0403

Impacted products

2 products

Vendor	Product	Version
Splunk	Splunk Enterprise	Affected: 10.2 , < 10.2.1 (custom) Affected: 10.0 , < 10.0.5 (custom) Affected: 9.4 , < 9.4.10 (custom) Affected: 9.3 , < 9.3.11 (custom)
Splunk	Splunk Cloud Platform	Affected: 10.4.2603 , < Not Affected (custom) Affected: 10.3.2512 , < 10.3.2512.5 (custom) Affected: 10.2.2510 , < 10.2.2510.9 (custom) Affected: 10.1.2507 , < 10.1.2507.19 (custom) Affected: 10.0.2503 , < 10.0.2503.13 (custom) Affected: 9.3.2411 , < 9.3.2411.127 (custom)

Date Public

2026-04-15 00:00

Credits

Gabriel Nitu, Splunk

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-20204",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-15T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-16T03:55:29.794Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "vendor": "Splunk",
          "versions": [
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              "lessThan": "10.2.1",
              "status": "affected",
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              "versionType": "custom"
            },
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              "lessThan": "10.0.5",
              "status": "affected",
              "version": "10.0",
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            },
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              "status": "affected",
              "version": "9.4",
              "versionType": "custom"
            },
            {
              "lessThan": "9.3.11",
              "status": "affected",
              "version": "9.3",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Splunk Cloud Platform",
          "vendor": "Splunk",
          "versions": [
            {
              "lessThan": "Not Affected",
              "status": "affected",
              "version": "10.4.2603",
              "versionType": "custom"
            },
            {
              "lessThan": "10.3.2512.5",
              "status": "affected",
              "version": "10.3.2512",
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              "lessThan": "10.2.2510.9",
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              "version": "10.2.2510",
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              "lessThan": "10.1.2507.19",
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        }
      ],
      "datePublic": "2026-04-15T00:00:00.000Z",
      "descriptions": [
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              "value": "In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory."
            }
          ],
          "value": "In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory."
        }
      ],
      "metrics": [
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            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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          "scenarios": [
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      "references": [
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        }
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      },
      "title": "Improper Handling and Insufficient Isolation of Specific Temporary Files in Splunk Enterprise"
    }
  },
  "cveMetadata": {
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    "dateReserved": "2025-10-08T11:59:15.397Z",
    "dateUpdated": "2026-04-16T03:55:29.794Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-GJ97-4W7H-79J2

CVE-2026-20204 (GCVE-0-2026-20204)

Tags

Sightings

Nomenclature

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