8.8

CVE-2026-16239

PostgreSQL type confusion in cursor CLOSE + DECLARE executes arbitrary code

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Postgresql ≫ Postgresql Version >= 14.0 < 14.24
Postgresql ≫ Postgresql Version >= 15.0 < 15.19
Postgresql ≫ Postgresql Version >= 16.0 < 16.15
Postgresql ≫ Postgresql Version >= 17.0 < 17.11
Postgresql ≫ Postgresql Version >= 18.0 < 18.5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.6% 0.463
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

https://www.postgresql.org/support/security/CVE-2026-16239/
Vendor Advisory