CVE-2026-14662

Name of the Vulnerable Software and Affected Versions PostgreSQL versions prior to 18.5 PostgreSQL versions prior to 17.11 PostgreSQL versions prior to 16.15 PostgreSQL versions prior to 15.19 PostgreSQL versions prior to 14.24

Description An integer wraparound issue exists in functions handling tsvector and tsquery data types. An unprivileged database user can provide crafted large inputs to cause the server to undersize a memory allocation and perform an out-of-bounds write. This may lead to the execution of arbitrary code with the privileges of the operating system user running the database.

Recommendations Update to version 18.5 or later. Update to version 17.11 or later. Update to version 16.15 or later. Update to version 15.19 or later. Update to version 14.24 or later.