PostgreSQL Hit by 12-Year-Old Vulnerability Allowing Server Takeover
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, […]
Pierluigi Paganini
September 04, 2026

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, escalate privileges and gain permanent superuser access.
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Dubbed PostGREShell, CVE-2026-6471 turns low-level replication access into code execution, permanent superuser privileges and a persistent database backdoor. The post 12-Year-Old PostgreSQL Vulnerability Enables Database, Server Takeover appeared first on SecurityWeek.
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