Description
Type confusion in PostgreSQL statistics import allows a table maintainer to execute arbitrary code as the operating system user running the database, via nested SET DATA TYPE during conversion of values to import. Within major version 18, minor versions before PostgreSQL 18.7 are affected. Versions before PostgreSQL 18 are unaffected.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | PostgreSQL | 18 – < 18.7 | 18.7 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | postgresql-18 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | postgresql-18 | No fix yet | — |
| Ubuntu 26.04 LTS | postgresql-18 | No fix yet | — |
| Ubuntu 24.04 LTS | postgresql-16 | No fix yet | — |
| Ubuntu 22.04 LTS | postgresql-14 | No fix yet | — |
| Ubuntu 20.04 LTS | postgresql-12 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | postgresql-10 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | postgresql-9.5 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | postgresql-9.3 | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | postgresql16 | 16.16-r0 | — |
| Alpine v3.24 | postgresql17 | 17.12-r0 | — |
| Alpine v3.24 | postgresql18 | 18.7-r0 | — |
| Alpine v3.23 | postgresql16 | 16.16-r0 | — |
| Alpine v3.23 | postgresql17 | 17.12-r0 | — |
| Alpine v3.23 | postgresql18 | 18.7-r0 | — |
| Alpine v3.22 | postgresql15 | 15.20-r0 | — |
| Alpine v3.22 | postgresql16 | 16.16-r0 | — |
| Alpine v3.22 | postgresql17 | 17.12-r0 | — |
| Alpine v3.21 | postgresql15 | 15.20-r0 | — |
| Alpine v3.21 | postgresql16 | 16.16-r0 | — |
| Alpine v3.21 | postgresql17 | 17.12-r0 | — |
Advisories 1
- WID-SEC-2026-4571 PostgreSQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026