CVE-2026-14679
Published: August 18, 2026Last modified: August 24, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.2 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | LOW |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | postgresql15 | Unknown (15.2-r0) |
| 25 LTS | postgresql17 | Fixed (17.11-r0) | |
| Stream | postgresql15 | Unknown (15.3-r0) | |
| postgresql17 | Unknown (17.0-r1) | ||
| postgresql18 | Fixed (18.6-r0) |