Description
Improper protection in PostgreSQL INSERT ... ON CONFLICT on auto-updatable views allows an attacker having INSERT and UPDATE privileges on the view to read and modify every row in the view's base table, via iterated INSERT ... ON CONFLICT DO UPDATE. This bypasses the view's WHERE condition, whether or not the view is a security_barrier view. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | PostgreSQL | 18 – < 18.7, 17 – < 17.12, 16 – < 16.16, 15 – < 15.20, < 14.25 | 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 | — |
| Debian 13 | postgresql-17 | 17.12-0+deb13u1 | — |
| Debian 12 | postgresql-15 | 15.20-0+deb12u1 | — |
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 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | postgresql14 | 14.25-1.1 | openSUSE-SU-2026:12550-1 |
| openSUSE Tumbleweed | postgresql15 | 15.20-1.1 | openSUSE-SU-2026:12551-1 |
| openSUSE Tumbleweed | postgresql16 | 16.16-1.1 | openSUSE-SU-2026:12552-1 |
| openSUSE Tumbleweed | postgresql17 | 17.12-1.1 | openSUSE-SU-2026:12553-1 |
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 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | postgresql | No fix yet | — |
Advisories 5
- openSUSE-SU-2026:12550-1 postgresql14-14.25-1.1 on GA media SUSE / openSUSE Security Updates · Nov 14, 2026
- openSUSE-SU-2026:12553-1 postgresql17-17.12-1.1 on GA media SUSE / openSUSE Security Updates · Nov 14, 2026
- openSUSE-SU-2026:12552-1 postgresql16-16.16-1.1 on GA media SUSE / openSUSE Security Updates · Nov 14, 2026
- openSUSE-SU-2026:12551-1 postgresql15-15.20-1.1 on GA media SUSE / openSUSE Security Updates · Nov 14, 2026
- WID-SEC-2026-4571 PostgreSQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026