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Splunk Enterprise PostgreSQL Backup-to-Restore Potential RCE Sequence
Sep 19, 2026 · Domain: Network Use Case: Threat Detection Use Case: Vulnerability Use Case: Network Security Monitoring Tactic: Initial Access Data Source: Network Packet Capture Data Source: Network Traffic Data Source: Zeek Data Source: Suricata Resources: Investigation Guide Noise: Unknown Performance: Fast Profile: Recommended Threat: Vulnerability Exploit Rule Type: ES|QL Vuln: CVE-2026-20253 ·Detects a POST to the Splunk Enterprise PostgreSQL backup endpoint followed by a POST to the restore endpoint from the same client to the same host within a 15-minute window. This sequence is unusual and can align with the public CVE-2026-20253 pre-authentication RCE chain, where an attacker stages a database dump via the backup path and executes attacker-controlled SQL via the restore path.
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Splunk Enterprise PostgreSQL Recovery Endpoint Injection Artifacts
Sep 19, 2026 · Domain: Network Use Case: Threat Detection Use Case: Vulnerability Use Case: Network Security Monitoring Tactic: Initial Access Data Source: Azure Data Source: Elastic Defend Data Source: GCP Data Source: Google Cloud Platform Data Source: Network Packet Capture Data Source: Network Traffic Data Source: Zeek Data Source: Suricata Resources: Investigation Guide Noise: Unknown Performance: Normal Profile: Recommended Threat: Vulnerability Exploit Rule Type: Custom Query (KQL) Platform: Azure Domain: Cloud Platform: GCP Domain: Endpoint Vuln: CVE-2026-20253 ·Detects CVE-2026-20253 exploit artifacts against the Splunk Enterprise PostgreSQL sidecar recovery endpoints via complementary signals. Where endpoint or Network Packet Capture request-body logging is available, the rule matches PostgreSQL connection-string injection keywords, suspicious
backupFiledestinations, and known filesystem artifacts used to pivot from backup/restore primitives to file write or RCE. It also detects vulnerable recovery endpoint probing and empty-password Basic auth credentials observed in public exploit tooling.
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