Type confusion from incomplete PostgreSQL type-cache invalidation allows an object creator to execute arbitrary code as the operating system user running the database, via a composite type change while its cache entry is being populated. Within major version 18, minor versions before PostgreSQL 18.7 are affected. Versions before PostgreSQL 18 are unaffected.
| Affected Version | Fixed In | Fix Published |
|---|---|---|
| 18 | 18.7 | 2026-11-12 |
For more information about PostgreSQL versioning, please visit the versioning page.
| Overall Score | 8.8 |
|---|---|
| Component | core server |
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.