CVE-2026-2003

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.

Score

CVSS 3.1 4.3 Medium

Status

Analyzed - f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

Published

2026-02-12

Last modified

2026-02-12

Weaknesses

CWE-1287

Affected products

• Postgresql (Postgresql)

References

• https://www.postgresql.org/support/security/CVE-2026-2003/