CVE-2026-2005

Description

Heap buffer overflow in PostgreSQL pgcrypto allows a ciphertext provider to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

How to fix CVE-2026-2005

To remediate CVE-2026-2005, upgrade the affected package to a fixed version below.

—upgrade to 15.16-r0 or later
—upgrade to 16.12-r0 or later
—upgrade to 17.8-r0 or later
—upgrade to 18.2-r0 or later
—upgrade to 14.21.0 or later
—upgrade to 13.23-0+deb11u2 or later
—upgrade to 15.16-0+deb12u1 or later
—upgrade to 17.8-0+deb13u1 or later
—upgrade to 18.2-1 or later

Is CVE-2026-2005 being exploited?

Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.

Affected packages (9)

from 0, < 15.16-r0
from 0, < 16.12-r0
from 0, < 17.8-r0
from 0, < 18.2-r0
from 0, < 14.21.0, >= 15.0.0, < 15.16.0, >= 16.0.0, < 16.12.0, >= 17.0.0, < 17.8.0, >= 18.0.0, < 18.2.0
from 0, < 13.23-0+deb11u2
from 0, < 15.16-0+deb12u1
from 0, < 17.8-0+deb13u1
from 0, < 18.2-1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H