KEV Entry

CVE-2026-20253

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2026-20253

2026-06-18 00:00 UTC

Timestamps

2026-06-18

2026-06-18

Scope

KEVIntel entry: Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise | Affected: Splunk / Splunk Enterprise | CVSS: 9.8 (CRITICAL) | EPSS: 0.10035 | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2026-20253', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-20253'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2026-20253'}

217450ae-1eff-41d7-a95c-6e4b5272e4e4

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-23 14:02 UTC

2026-06-23 14:02 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-18T00:00:00.000Z",
  "ahead_of_cisa_kev": {
    "count": 3,
    "unit": "day"
  },
  "cvss_score": 9.8,
  "cvss_severity": "CRITICAL",
  "epss_percentile": 0.95018,
  "epss_score": 0.10035,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": false,
  "product": "Splunk Enterprise",
  "title": "Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise",
  "used_in_malware": "unknown",
  "vendor": "Splunk"
}
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