CVE-2026-6575
Buffer over-read in PostgreSQL function pg_restore_attribute_stats() accepts array values of unmatched length, which causes query planning to read past end of one array. This allows a table maintainer to infer memory values past that array end. Within major version 18, minor versions before PostgreSQL 18.4 are affected. Versions before PostgreSQL 18 are unaffected.
Version Information
| Affected branch | Introduced | Fixed In | Fix Published |
|---|---|---|---|
| 18 | — | 18.4 | 2026-05-14 |
CVSS 3.0
| Overall Score | 4.3 |
|---|---|
| Component | core server |
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
First published: 2026-05-14
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: 4
pgweb · 2026-10-03 12:08:55.967155+08
- PostgreSQL 18 · Original minor coordinate: 4