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PostgreSQL ctid type confusion in selectivity estimator discloses derivative of arbitrary read

PostgreSQL · CVE-2026-14668
0 news outlets0 CERTs and agencies0 researchers

What is it?

Type confusion regarding input of PostgreSQL ctid data type selectivity estimator allows an object creator to view a calculation derived from the value of an arbitrary 4-byte span of memory, via a chosen non-ctid input. While the calculation loses precision, substantial memory value recovery appears possible. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
8.1
EPSS
0.3%
First seen
7 d ago
Status
corroborated

All PostgreSQL vulnerabilities