CVE-2018-11408: Debian Linux

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

The security handlers in the Security component in Symfony in 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11 have an Open redirect vulnerability when security.http_utils is inlined by a container. NOTE: this issue exists because of an incomplete fix for CVE-2017-16652.

Affected products

• Debian Debian Linux: version 8.0 only
• Sensiolabs Symfony: from 2.7.0, before 2.7.48 (fixed in 2.7.48); from 2.8.0, before 2.8.41 (fixed in 2.8.41); from 3.3.0, before 3.3.17 (fixed in 3.3.17); from 3.4.0, before 3.4.11 (fixed in 3.4.11); from 4.0.0, before 4.0.11 (fixed in 4.0.11)

Published 2018-06-13. Last modified 2026-06-17.