CVE-2026-2003

MEDIUM

PostgreSQL <18.2-14.21 - Info Disclosure

Title source: llm

Description

Improper validation of type "oidvector" in PostgreSQL allows a database user to disclose a few bytes of server memory. We have not ruled out viability of attacks that arrange for presence of confidential information in disclosed bytes, but they seem unlikely. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

References (1)

[Various Sources] https://www.postgresql.org/support/security/CVE-2026-2003/

Scores

CVSS v3 4.3

EPSS 0.0005

EPSS Percentile 14.9%

Attack Vector NETWORK

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

Classification

CWE

CWE-1287

Status published

Affected Products (1)

postgresql/postgresql < 14.21

Timeline

Published Feb 12, 2026

Tracked Since Feb 18, 2026