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CVE-2026-2003

postgresql: PostgreSQL oidvector discloses a few bytes of memory

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Severity

Moderate

Red Hat Product Security

4.3

CVSS 3.1

Review impact separately from score.

Published · February 12, 2026

Updated · July 3, 2026

Description

A type validation flaw has been discovered in postgresql. Improper validation of the type "oidvector" in PostgreSQL allows a database user to disclose a few bytes of server memory. It is possible that this may expose confidential information but it is unlikely.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE-1287 · Improper Validation of Specified Type of Input