CVE-2026-14679
Public on 2026-08-13
Modified on 2026-08-14
Description
Stack buffer overflow in PostgreSQL argument name matching allows an object creator to achieve unknown impacts via OUT parameter count. The attack can write only 0x0 and 0x1 bytes. 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 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 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |