What is CVE-2026-2003?

CVE-2026-2003 is a medium-severity vulnerability in Postgresql, classified under CWE-1287. CVSS score: 4.3/10. Published 2026-02-12.

How severe is CVE-2026-2003?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Postgresql

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, bu…

EPSS: 0.003 (19.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Postgresql
N/a Postgresql — versions 18, 17, 16

Weakness classification (CWE)

CWE-1287

References

f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-2003?: CVE-2026-2003 is a medium-severity vulnerability in Postgresql, classified under CWE-1287. CVSS score: 4.3/10. Published 2026-02-12.
How severe is CVE-2026-2003?: Medium severity. CVSS v3 base score is 4.3 out of 10.