Stack buffer overflow in PostgreSQL argument name matching allows an object creator to achieve unknown impacts via OUT parameter count. The attack can write only 0x0 and 0x1 bytes. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
| Affected Version | Fixed In | Fix Published |
|---|---|---|
| 18 | 18.5 | 2026-08-13 |
| 17 | 17.11 | 2026-08-13 |
| 16 | 16.15 | 2026-08-13 |
| 15 | 15.19 | 2026-08-13 |
| 14 | 14.24 | 2026-08-13 |
For more information about PostgreSQL versioning, please visit the versioning page.
| Overall Score | 8.2 |
|---|---|
| Component | core server |
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
If you wish to report a new security vulnerability in PostgreSQL, please send an email to security@postgresql.org.
For reporting non-security bugs, please see the Report a Bug page.