CVE-2021-21426

CRITICAL

Openmage Magento < 19.4.13 - Insecure Deserialization

Title source: rule

Description

Magento-lts is a long-term support alternative to Magento Community Edition (CE). In magento-lts versions 19.4.12 and prior and 20.0.8 and prior, there is a vulnerability caused by the unsecured deserialization of an object. A patch in versions 19.4.13 and 20.0.9 was back ported from Zend Framework 3. The vulnerability was assigned CVE-2021-3007 in Zend Framework.

References (1)

[Third Party Advisory] https://github.com/OpenMage/magento-lts/security/advisories/GHSA-m496-x567-f98c

Scores

CVSS v3 9.8

EPSS 0.0040

EPSS Percentile 60.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-502

Status published

Affected Products (2)

openmage/magento < 19.4.13

openmage/magento-lts < 19.4.13Packagist

Timeline

Published Apr 21, 2021

Tracked Since Feb 18, 2026