What’s Vulnerable › Vulnerabilities
CVE-2018-11408
- Severity: medium (CVSS 6.1 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2018-06-13 · updated 2026-06-17
- Weakness: CWE-601
Description
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 Linux: 8.0
- symfony: from 2.7.0 before 2.7.48; from 2.8.0 before 2.8.41; from 3.3.0 before 3.3.17; from 3.4.0 before 3.4.11; from 4.0.0 before 4.0.11 — fixed in 2.7.48, 2.8.41, 3.3.17, 3.4.11, 4.0.11
How to fix
Upgrade to a fixed version: symfony 2.7.48, 2.8.41, 3.3.17, 3.4.11. Check the vendor advisory for mitigations.
References
- https://lists.debian.org/debian-lts-announce/2019/03/msg00009.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/
- https://symfony.com/blog/cve-2018-11408-open-redirect-vulnerability-on-security-handlers
- https://lists.debian.org/debian-lts-announce/2019/03/msg00009.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/
- https://symfony.com/blog/cve-2018-11408-open-redirect-vulnerability-on-security-handlers
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