CVE-2026-2003
PostgreSQL oidvector discloses a few bytes of memory
4.3CVSSMEDIUM
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.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
and 7 more affected products View all →
Exploitability
Official Patch Available
References
https://www.postgresql.org/support/security/CVE-2026-2003/
postgresql.org
https://www.postgresql.org/support/security/CVE-2026-2003/
postgresql.org
https://postgrespro.ru/products/postgrespro/certified
postgrespro.ru
and 3 more references View all →
Timeline
Published
Feb 12, 2026
Last Updated
Feb 20, 2026
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