Externally-controlled format string in PostgreSQL timeofday() function allows
an attacker to retrieve portions of server memory, via crafted timezone zones.
Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
The PostgreSQL project thanks Xint Code for reporting this problem.
| Affected Version | Fixed In | Fix Published |
|---|---|---|
| 18 | 18.4 | 2026-05-12 |
| 17 | 17.10 | 2026-05-12 |
| 16 | 16.14 | 2026-05-12 |
| 15 | 15.18 | 2026-05-12 |
| 14 | 14.23 | 2026-05-12 |
For more information about PostgreSQL versioning, please visit the versioning page.
| Overall Score | 4.3 |
|---|---|
| Component | core server |
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
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.