Turning a 22-year-old Postgres type-confusion primitive into RCE
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Postgres RCE exploit write-up offers deep technical insight and actionable security knowledge.
Summary
If you had told me in April 2026 one question “Mehmet, can we use managed PostgreSQL for this project?” would send me into the deepest rabbit hole of my life, I would have laughed. Months later, I finally found the bottom of that rabbit hole. It was a 22-year-old zero-day in PostgreSQL core. In this blog post you will read a story of how I ended up uncovering a new class of type-confusion vulnerabilities in PostgreSQL. This is the 3rd part of blog post series named “ Systemic Risks in the Managed PostgreSQL Industry