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8.8High

CVE-2026-16239PostgreSQL type confusion in cursor CLOSE + DECLARE executes arbitrary code

PostgreSQL Published: (3 months ago)

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 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Weakness (CWE): CWE-843

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
postgresql postgresql 14.0 – < 14.24
— PostgreSQL 18 – < 18.6, 17 – < 17.11, 16 – < 16.15, 15 – < 15.19, < 14.24

References and patches

CPE matches (NVD) (5)
  • cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* ≥ 14.0 < 14.24
  • cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* ≥ 15.0 < 15.19
  • cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* ≥ 16.0 < 16.15
  • cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* ≥ 17.0 < 17.11
  • cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* ≥ 18.0 < 18.5

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