CVE-2026-120142

HIGH 8.8

PostgreSQL dropped-column type confusion executes arbitrary code

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

Type confusion in PostgreSQL anonymous RECORD types allows an object creator to execute arbitrary code as the operating system user running the database, via row types having dropped attributes in the same positions but with different widths or alignments. Within major versions 17-18, minor versions before PostgreSQL 18.7 and 17.12 are affected. Versions before PostgreSQL 17 are unaffected.

CWE	CWE-843
Vendor	n/a
Product	postgresql
Ecosystems	Database
Industries	Technology
Published	Nov 12, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / PostgreSQL

18 < 18.7 17 < 17.12

References

NVD ↗ CVE.org ↗ EPSS Data ↗

postgresql.org: https://www.postgresql.org/support/security/CVE-2026-120142/

Credits

The PostgreSQL project thanks Peter Geoghegan for reporting this problem.