Advisory Database
  • Advisories
  • Dependency Scanning
  1. composer
  2. ›
  3. openmage/magento-lts
  4. ›
  5. CVE-2021-21426

CVE-2021-21426: Deserialization of Untrusted Data

April 22, 2021 (updated April 30, 2021)

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

  • github.com/OpenMage/magento-lts/security/advisories/GHSA-m496-x567-f98c
  • github.com/advisories/GHSA-m496-x567-f98c
  • nvd.nist.gov/vuln/detail/CVE-2021-21426

Code Behaviors & Features

Detect and mitigate CVE-2021-21426 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions up to 19.4.12, all versions starting from 20.0.0 up to 20.0.8

Fixed versions

  • 19.4.13
  • 20.0.9

Solution

Upgrade to versions 19.4.13, 20.0.9 or above.

Impact 9.8 CRITICAL

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

Learn more about CVSS

Weakness

  • CWE-502: Deserialization of Untrusted Data
  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Source file

packagist/openmage/magento-lts/CVE-2021-21426.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Sun, 08 Nov 2026 00:16:06 +0000.