CVE-2026-35549

Description

An issue was discovered in MariaDB Server before 11.4.10, 11.5.x through 11.8.x before 11.8.6, and 12.x before 12.2.2. If the caching_sha2_password authentication plugin is installed, and some user accounts are configured to use it, a large packet can crash the server because sha256_crypt_r uses alloca.

How to fix CVE-2026-35549

To remediate CVE-2026-35549, upgrade the affected package to a fixed version below.

Bitnami/mariadb—upgrade to 11.4.10 or later
—upgrade to 11.4.10 or later
—upgrade to 11.4.10 or later
—upgrade to 1:11.8.6-0+deb13u1 or later

Is CVE-2026-35549 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (4)

from 0, < 11.4.10, >= 11.5.0, < 11.8.6, >= 12.0.0, < 12.2.2
from 0, < 11.4.10, >= 11.5.0, < 11.8.6, >= 12.0.0, < 12.2.2
from 0, < 11.4.10, >= 11.5.0, < 11.8.6, >= 12.0.0, < 12.2.2
from 0, < 1:11.8.6-0+deb13u1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H