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
Published Aug 3, 2018
7.2
HIGHCVSS 3.0
EPSS 1.15%
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 products
No data.
- ≥ 2.7.0 · ≤ 2.7.48
- ≥ 2.8.0 · ≤ 2.8.43
- ≥ 3.3.0 · ≤ 3.3.17
- ≥ 3.4.0 · ≤ 3.4.13
- ≥ 4.0.0 · ≤ 4.0.13
- ≥ 4.1.0 · ≤ 4.1.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
AV:N/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.15% (0.01146) | 65.57th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.15% (0.01146) | 65.33th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.07% (0.00072) | 31.49th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.07% (0.00072) | 31.36th | v3 (v2023.03.01) |
| Dec 25, 2023 | 0.07% (0.00071) | 29.31th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (10)
- https://github.com/advisories/GHSA-66p6-7p29-55p9 Advisory
- https://github.com/symfony/symfony
- https://github.com/symfony/symfony/commit/725dee4cd8b4ccd52e335ae4b4522242cea9bd4a x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/symfony/symfony/commit/7f912bbb78377c2ea331b3da28363435fbd91337
- https://github.com/symfony/symfony/commit/96504fb8c9f91204727d2930eb837473ce154956
- https://github.com/symfony/symfony/commit/974240e178bb01d734bf1df1ad5c3beba6a2f982
- https://github.com/symfony/symfony/commit/9cfcaba0bf71f87683510b5f47ebaac5f5d6a5ba
- https://github.com/symfony/symfony/commit/bcf5897bb1a99d4acae8bf7b73e81bfdeaac0922
- https://nvd.nist.gov/vuln/detail/CVE-2018-14774
- https://symfony.com/blog/cve-2018-14774-possible-host-header-injection-when-using-httpcache x_refsource_CONFIRMPatchThird Party Advisory
Change history (0)
No recorded changes yet.