PostgreSQL <18.7 Use-After-Free in Expanded-Record Domain Checks
CVE-2026-120150 Published on November 12, 2026
PostgreSQL expanded-record domain-check use-after-free executes arbitrary code
Use after free in PostgreSQL expanded-record domain checks allows an object creator to execute arbitrary code as the operating system user running the database, via repeated checks of a domain over a composite type that cause reuse of a dangling memory-context pointer. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Vulnerability Analysis
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2026-120150 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2026-120150
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Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.