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PostgreSQL Access of Resource Using Incompatible Type ('Type Confusion') Vulnerability (CVE-2026-16239) - Vulnerability Database

PostgreSQL Access of Resource Using Incompatible Type ('Type Confusion') Vulnerability (CVE-2026-16239)

Description

Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operating system user running the database, via re-creation of a cursor or other portal with different types. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

References

CVE-2026-16239

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Severity

High

Classification

CVE-2026-16239
CWE-843
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Tags

Missing Update
Known Vulnerabilities