CVE-2026-2006
PostgreSQL missing validation of multibyte character length executes arbitrary code
8.8CVSSHIGH
Description
Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. 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:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
and 7 more affected products View all →
Exploitability
Official Patch Available
References
https://www.postgresql.org/support/security/CVE-2026-2006/
postgresql.org
https://www.postgresql.org/support/security/CVE-2026-2006/
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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