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CVE-2026-76258 Use of Hard-coded Cryptographic Key through Companion App Registration in Splunk Secure Gateway

🗓️ 19 Aug 2026 21:34:16Reported by ciscoType 
cvelist
 cvelist
🔗 www.cve.org👁 47 Views

Hard-coded key in Splunk Secure Gateway lets non-admin users register arbitrary companion apps, exposing mobile user tokens to attacker URLs.

Related
Affected
Refs
[
  {
    "product": "Splunk Enterprise",
    "vendor": "Splunk",
    "versions": [
      {
        "version": "10.4",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "10.4.2"
      },
      {
        "version": "10.2",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "10.2.6"
      },
      {
        "version": "10.0",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "10.0.9"
      },
      {
        "version": "9.4",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "9.4.14"
      }
    ],
    "modules": [
      "Splunk Secure Gateway"
    ]
  },
  {
    "product": "Splunk Secure Gateway",
    "vendor": "Splunk",
    "versions": [
      {
        "version": "3.10",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "3.10.10"
      },
      {
        "version": "3.9",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "3.9.24"
      },
      {
        "version": "3.8",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "3.8.71"
      }
    ]
  }
]

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