Critical

PostgreSQL Hit by 12-Year-Old Vulnerability Allowing Server Takeover

Security Affairs

September 4, 2026 at 1:41 PM

Overview

Researchers have discovered a serious vulnerability in PostgreSQL, known as PostGREShell (CVE-2026-6471), which has been around for 12 years. This flaw allows low-privileged attackers with replication access to execute arbitrary code, potentially leading to a complete server takeover. The vulnerability has a CVSS score of 7.2 and affects PostgreSQL versions dating back to 2014. Given its long-standing existence, organizations using affected versions should take immediate action to secure their systems to prevent exploitation. The discovery emphasizes the critical need for regular security assessments and updates in database management systems.

Key Takeaways

Affected Systems: PostgreSQL versions from 2014 onwards
Action Required: Users should apply patches and updates provided by PostgreSQL.
Timeline: Disclosed on October 2023

Original Article Summary

PostGREShell (CVE-2026-6471) is a 12-year-old PostgreSQL flaw that lets low-privileged attackers execute code and take over servers. Cyera researchers found a severe PostgreSQL vulnerability, dubbed PostGREShell and tracked as CVE-2026-6471 (CVSS score of 7.2). Present in releases dating back to 2014, the flaw can be exploited by attackers with low-level replication access to execute code, […]

Impact

PostgreSQL versions from 2014 onwards

Exploitation Status

The exploitation status is currently unknown. Monitor vendor advisories and security bulletins for updates.

Timeline

Disclosed on October 2023

Remediation

Users should apply patches and updates provided by PostgreSQL. Regular security assessments and monitoring for unusual activity are recommended to mitigate potential exploitation.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Vulnerability, Critical, and 1 more.

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