CVE-2019-18889: Fedoraproject Fedora

Critical severity, CVSS 9.8. EPSS: 33.2% chance of exploitation in the next 30 days.

An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.

Affected products

• Fedoraproject Fedora: version 31 only
• Sensiolabs Symfony: from 3.4.0, up to and including 3.4.34; from 4.2.0, up to and including 4.2.11; from 4.3.0, up to and including 4.3.7

Published 2019-11-21. Last modified 2026-06-17.