CVE-2026-14678

Medium4.3Published on August 13, 2026

Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS score4.3 / 10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness type (CWE)CWE-126

Vendorspostgresql

Affected products

Vendors	Product	Versions
postgresql	postgresql	< 14.24

Vulnerabilities

PostgreSQL Logical Decoding Flaw Allows Code Execution as the `postgres` User

PostgreSQL CVE-2026-6471 lets REPLICATION users load arbitrary libraries via logical decoding to execute code as postgres. See affected versions and fix.

Sep 6, 202601:146 min readRead

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CVE database

Affected products

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PostgreSQL Logical Decoding Flaw Allows Code Execution as the `postgres` User