This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-14662 →

UBUNTU-CVE-2026-14662

Integer wraparound in PostgreSQL tsvector and tsquery data type functions allows an unprivileged database user to cause the server to undersize an all...

Original description

The description as published by the source.

Integer wraparound in PostgreSQL tsvector and tsquery data type functions allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds, via crafted large inputs. This may execute arbitrary code as the operating system user running the database. These types are typically sourced from application logic, not taken from the application's user. Hence, application users attacking the database, through the application as a conduit, are unlikely. CVE-2026-6473 had fixed similar problems. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Ubuntu:Pro:14.04:LTS postgresql-9.3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:16.04:LTS postgresql-9.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:18.04:LTS postgresql-10

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:20.04:LTS postgresql-12

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:22.04:LTS postgresql-14

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"14.24-0ubuntu0.22.04.1"}]}]

Ubuntu:24.04:LTS postgresql-16

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.15-0ubuntu0.24.04.1"}]}]

Ubuntu:26.04:LTS postgresql-18

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.6-0ubuntu0.26.04.1"}]}]

References

advisory ubuntu.com
report ubuntu.com
report cve.org
report postgresql.org
report postgresql.org