Wire · opportunities
PostGREShell vulnerability allows server takeover
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Fusion42 · 5 September 2026 · Fusion42 review
A critical vulnerability named PostGREShell (CVE-2026-6471) in PostgreSQL allows low-privileged attackers to execute code, escalate privileges, and gain permanent superuser access across multiple operating systems. The flaw affects PostgreSQL versions prior to 18.6, 17.11, 16.15, 15.19, and 14.24 and requires immediate patching and review of replication privileges.
This Wire brief sits within Fusion42's coverage of Enterprise Software.
◆ ◆ The Wire takeaway
PostgreSQL's long-standing security flaw lets low-privilege users take full control of servers. You must prioritise immediate patching and tighten replication permissions to protect your platform from complete takeover.
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1 source · 5 Sep 2026
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