CVE-2026-2003CWE-1287

PostgreSQL oidvector discloses a few bytes of memory

Medium · published February 12, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
23.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00319 · 23.4th percentile
Weakness
CWE-1287 · Improper Validation of Specified Type of Input
Published
2026-02-12T13:00Z
EPSS history
Timeline
  • 12 FEB 13:00Z
    PostgreSQL oidvector discloses a few bytes of memory
    cvelistv5