CVE-2026-14676
Heap buffer overflow in PostgreSQL pg_stat_statements allows the query author to execute arbitrary code as the operating system user running the database, via crafted queries containing array constants. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.
Version Information
| Affected branch | Introduced | Fixed In | Fix Published |
|---|---|---|---|
| 18 | — | 18.6 | 2026-08-13 |
CVSS 3.0
| Overall Score | 8.8 |
|---|---|
| Component | contrib module |
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
First published: 2026-08-13
Historical source observations
These dated records preserve the original source claims separately from the reviewed fix list.
center · 2026-10-03 12:08:35.169032+08
- PostgreSQL 18 · Original minor coordinate: 6
pgweb · 2026-10-03 12:08:55.967155+08
- PostgreSQL 18 · Original minor coordinate: 6