Improper validation of type oidvector in PostgreSQL allows a database user to
disclose a few bytes of server memory. We have not ruled out viability of
attacks that arrange for presence of confidential information in disclosed
bytes, but they seem unlikely. Versions before PostgreSQL 18.2, 17.8, 16.12,
15.16, and 14.21 are affected.
The PostgreSQL project thanks Altan Birler for reporting this problem.
| Affected Version | Fixed In | Fix Published |
|---|---|---|
| 18 | 18.2 | Feb. 12, 2026 |
| 17 | 17.8 | Feb. 12, 2026 |
| 16 | 16.12 | Feb. 12, 2026 |
| 15 | 15.16 | Feb. 12, 2026 |
| 14 | 14.21 | Feb. 12, 2026 |
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.