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CVE-2026-78620

Status: AnalyzedMedium (4.9)—

The Okta Access Gateway Kerberos configuration handler does not validate file paths specified in event payloads before writing file contents. The path from the event payload is used directly as the write destination, resulting in files being written to unintended locations on the appliance filesystem.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Okta — Access Gateway

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-78620",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
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              "automatable": "no"
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            {
              "technicalImpact": "total"
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          ],
          "version": "2.0.3",
          "timestamp": "2026-09-10T14:47:51.803109Z"
        }
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    "cvssMetricV31": [
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        "source": "nvd@nist.gov",
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          "integrityImpact": "HIGH",
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          "product": "Okta Access Gateway",
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  "published": "2026-09-08T20:18:36.777",
  "references": [
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      "url": "https://trust.okta.com/security-advisories/improper-path-validation-in-okta-access-gateway-kerberos-configuration-handling-cve-2026-78620",
      "tags": [
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      "source": "psirt@okta.com"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "psirt@okta.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-73"
        }
      ]
    }
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    {
      "lang": "en",
      "value": "The Okta Access Gateway Kerberos configuration handler does not validate file paths specified in event payloads before writing file contents. The path from the event payload is used directly as the write destination, resulting in files being written to unintended locations on the appliance filesystem."
    }
  ],
  "lastModified": "2026-09-22T20:39:20.293",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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