CVE-2018-14774
HIGH7.2EPSS 0.17%Symfony Host Header Injection
Published: 5/14/2022Modified: 5/27/2026
Description
An issue was discovered in HttpKernel in Symfony 2.7.0 through 2.7.48, 2.8.0 through 2.8.43, 3.3.0 through 3.3.17, 3.4.0 through 3.4.13, 4.0.0 through 4.0.13, and 4.1.0 through 4.1.2. When using HttpCache, the values of the X-Forwarded-Host headers are implicitly set as trusted while this should be forbidden, leading to potential host header injection.
Affected packages (2)
- Debian/symfonyfrom 0, < 3.4.14+dfsg-1
- Packagist/symfony/symfony>= 2.7.0, < 2.7.49
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.2 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
References (10)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2018-14774
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2018-14774
- PATCHhttps://github.com/symfony/symfony
- WEBhttps://github.com/symfony/symfony/commit/725dee4cd8b4ccd52e335ae4b4522242cea9bd4a
- WEBhttps://github.com/symfony/symfony/commit/7f912bbb78377c2ea331b3da28363435fbd91337
- WEBhttps://github.com/symfony/symfony/commit/96504fb8c9f91204727d2930eb837473ce154956
- WEBhttps://github.com/symfony/symfony/commit/974240e178bb01d734bf1df1ad5c3beba6a2f982
- WEBhttps://github.com/symfony/symfony/commit/9cfcaba0bf71f87683510b5f47ebaac5f5d6a5ba
- WEBhttps://github.com/symfony/symfony/commit/bcf5897bb1a99d4acae8bf7b73e81bfdeaac0922
- WEBhttps://symfony.com/blog/cve-2018-14774-possible-host-header-injection-when-using-httpcache