VULNERABILITY INTELLIGENCE

CVE-2019-18887

CVSS score8.1 HIGH

EPSS probability1.34%

CISA KEVNot currently listed

Published2019-11-21

Last modified2026-06-17

Description

An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. The UriSigner was subject to timing attacks. This is related to symfony/http-kernel.