This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-18024 →

DEBIAN-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

Debian:12 postgresql-15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"15.19-0+deb12u1"}]}]

Debian:13 postgresql-17

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.11-0+deb13u1"}]}]

Debian:14 postgresql-18

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.6-1"}]}]

References

advisory security-tracker.debian.org