CVE-2026-2003
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Postgresql
PublishedFeb 12, 2026
First seenFeb 12, 2026
Weakness typeCWE-1287CWE-1287
How to fix
Update
- postgresql postgresql14.21, 15.16, 16.12, 17.8, 18.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| postgresql postgresql | 14.0 ≤ v < 14.21, 15.0 ≤ v < 15.16, 16.0 ≤ v < 16.12, 17.0 ≤ v < 17.8, 18.0 ≤ v < 18.2 | 14.21, 15.16, 16.12, 17.8, 18.2 |
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