High severityNVD Advisory· Published Aug 3, 2018· Updated Aug 5, 2024
CVE-2018-14774
CVE-2018-14774
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
symfony/symfonyPackagist | >= 2.7.0, < 2.7.49 | 2.7.49 |
symfony/symfonyPackagist | >= 2.8.0, < 2.8.44 | 2.8.44 |
symfony/symfonyPackagist | >= 3.3.0, < 3.3.18 | 3.3.18 |
symfony/symfonyPackagist | >= 3.4.0, < 3.4.14 | 3.4.14 |
symfony/symfonyPackagist | >= 4.0.0, < 4.0.14 | 4.0.14 |
symfony/symfonyPackagist | >= 4.1.0, < 4.1.3 | 4.1.3 |
Affected products
1Patches
Vulnerability mechanics
Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
9- github.com/advisories/GHSA-66p6-7p29-55p9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2018-14774ghsaADVISORY
- github.com/symfony/symfony/commit/725dee4cd8b4ccd52e335ae4b4522242cea9bd4aghsax_refsource_CONFIRMWEB
- github.com/symfony/symfony/commit/7f912bbb78377c2ea331b3da28363435fbd91337ghsaWEB
- github.com/symfony/symfony/commit/96504fb8c9f91204727d2930eb837473ce154956ghsaWEB
- github.com/symfony/symfony/commit/974240e178bb01d734bf1df1ad5c3beba6a2f982ghsaWEB
- github.com/symfony/symfony/commit/9cfcaba0bf71f87683510b5f47ebaac5f5d6a5baghsaWEB
- github.com/symfony/symfony/commit/bcf5897bb1a99d4acae8bf7b73e81bfdeaac0922ghsaWEB
- symfony.com/blog/cve-2018-14774-possible-host-header-injection-when-using-httpcacheghsax_refsource_CONFIRMWEB
News mentions
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