This page tracks the Alpine Linux fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-18024 →
ALPINE-CVE-2026-18024
Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text...
Original description
The description as published by the source.
Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value. This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Alpine:v3.21
postgresql16
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.15-r0"}]}]
Alpine:v3.22
postgresql16
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.15-r0"}]}]
Alpine:v3.21
postgresql17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.11-r0"}]}]
Alpine:v3.22
postgresql17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.11-r0"}]}]
Alpine:v3.23
postgresql17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.11-r0"}]}]
Alpine:v3.24
postgresql17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.11-r0"}]}]
Alpine:v3.23
postgresql18
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.5-r0"}]}]
Alpine:v3.24
postgresql18
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.5-r0"}]}]
References
- advisory security.alpinelinux.org