CVE-2026-6471
Public on 2026-08-13
Modified on 2026-08-14
Description
Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary code as that account. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Postgresql14 Extra | libpq | Not Affected | ||
| Amazon Linux 2023 | libpq | Not Affected | ||
| Amazon Linux 2027 Preview | libpq | Not Affected | ||
| Amazon Linux 2 - Postgresql14 Extra | postgresql | 2026-08-31 | ALAS2POSTGRESQL14-2026-025 | Fixed |
| Amazon Linux 2 - Core | postgresql | Not Affected | ||
| Amazon Linux 2 - Postgresql10 Extra | postgresql | No Fix Planned | ||
| Amazon Linux 2 - Postgresql11 Extra | postgresql | No Fix Planned | ||
| Amazon Linux 2 - Postgresql12 Extra | postgresql | No Fix Planned | ||
| Amazon Linux 2 - Postgresql13 Extra | postgresql | No Fix Planned | ||
| Amazon Linux 2 - Postgresql9.6 Extra | postgresql | No Fix Planned | ||
| Amazon Linux 2023 | postgresql15 | 2026-08-31 | ALAS2023-2026-2077 | Fixed |
| Amazon Linux 2023 | postgresql16 | 2026-08-31 | ALAS2023-2026-2078 | Fixed |
| Amazon Linux 2027 Preview | postgresql16 | Pending Fix | ||
| Amazon Linux 2023 | postgresql17 | 2026-08-31 | ALAS2023-2026-2076 | Fixed |
| Amazon Linux 2027 Preview | postgresql17 | Pending Fix | ||
| Amazon Linux 2023 | postgresql18 | 2026-08-31 | ALAS2023-2026-2079 | Fixed |
| Amazon Linux 2027 Preview | postgresql18 | Pending Fix |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |