KEV Entry

CVE-2026-20253

Known Exploited Vulnerability Entry Previdian

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Entry Details
Confirmed Exploited

CVE-2026-20253

2026-06-15 07:15 CEST

Timestamps

2026-06-15

2026-06-15

Scope

Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise | Affected: Splunk / Splunk Enterprise | CVSS: 9.8 (CRITICAL) | EPSS: 0.96939 | Used in malware: unknown | Listed 3 days ahead of CISA KEV | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2026-20253', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-20253'}
  • {'id': 'GHSA-XGM5-JH99-WC4V', 'url': 'https://github.com/advisories/GHSA-XGM5-JH99-WC4V'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2026-20253'}

d2a3e024-6dda-4563-92fa-1866d3582479

Previdian
caeb2787-0d58-4236-9039-7c86c3e566f3

2026-10-02 09:09 CEST

2026-10-02 09:09 CEST

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-15T05:15:25.399Z",
  "ahead_of_cisa_kev": {
    "count": 3,
    "unit": "day"
  },
  "cve_id": "CVE-2026-20253",
  "cvss_estimated": false,
  "cvss_score": 9.8,
  "cvss_severity": "CRITICAL",
  "epss_percentile": 0.99889,
  "epss_score": 0.96939,
  "feed": "Previdian (previdian.com)",
  "ghsa_id": "GHSA-XGM5-JH99-WC4V",
  "not_yet_in_cisa_kev": false,
  "previous_ids": [],
  "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",
  "virtual_patch": true,
  "vulnerability_id": "CVE-2026-20253"
}
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