# symfony/http-kernel (Packagist) vulnerabilities

8 known vulnerabilities (2 high, 2 medium, 1 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://packagist.org/packages/symfony/http-kernel

## Advisories (8)

### [CVE-2026-123339](https://cve.now/CVE-2026-123339): Symfony: Inline Fragments Let Untrusted Forwarded Headers Set the Host, Scheme and Port of the URLs Generated for the Main Request

- Severity: Low 2.3
- Published: Nov 6, 2026
- Affected: fixed in 5.4.56; from 6.0.0, fixed in 6.4.50; from 7.0.0, fixed in 7.4.23; from 8.0.0, fixed in 8.1.11.

### [CVE-2026-45075](https://cve.now/CVE-2026-45075): Symfony: HEAD Request Bypasses methods: \['GET'\] Filter in #\[IsGranted\] / #\[IsSignatureValid\] / #\[IsCsrfTokenValid\]

- Severity: High 8.3
- Published: Jul 14, 2026
- Affected: from 7.4.0, fixed in 7.4.12; from 8.0.0, fixed in 8.0.12.

### [CVE-2022-24894](https://cve.now/CVE-2022-24894): Symfony storing cookie headers in HttpCache

- Severity: Medium 5.9
- Published: Feb 3, 2023
- Affected: from 2.0.0, fixed in 4.4.50; from 5.0.0, fixed in 5.4.20; from 6.0.0, fixed in 6.0.20; from 6.1.0, fixed in 6.1.12; from 6.2.0, fixed in 6.2.6.

### [CVE-2021-41267](https://cve.now/CVE-2021-41267): Webcache Poisoning in Symfony

- Severity: Medium 6.5
- Published: Nov 24, 2021
- Affected: from 5.2.0, fixed in 5.3.12.

### [CVE-2020-15094](https://cve.now/CVE-2020-15094): RCE in Symfony

- Severity: High 8.0
- Published: Sep 2, 2020
- Affected: from 4.3.0, fixed in 4.4.13; from 5.0.0, fixed in 5.1.5.

### [CVE-2019-18887](https://cve.now/CVE-2019-18887): An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7.

- Severity: Unrated
- Published: Nov 21, 2019
- Affected: from 2.2.0, fixed in 2.8.52; from 3.0.0, fixed in 3.4.35; from 4.0.0, fixed in 4.2.12; from 4.3.0, fixed in 4.3.8.

### [CVE-2015-2308](https://cve.now/CVE-2015-2308): Eval injection vulnerability in the HttpCache class in HttpKernel in Symfony 2.x before 2.3.27, 2.4.x and 2.5.x before 2.5.11, and 2.6.x…

- Severity: Unrated
- Published: Jun 24, 2015
- Affected: from 2.0.0, fixed in 2.3.27; from 2.4.0, fixed in 2.5.11; from 2.6.0, fixed in 2.6.6.

### [CVE-2015-4050](https://cve.now/CVE-2015-4050): FragmentListener in the HttpKernel component in Symfony 2.3.19 through 2.3.28, 2.4.9 through 2.4.10, 2.5.4 through 2.5.11, and 2.6.0…

- Severity: Unrated
- Published: Jun 2, 2015
- Affected: from 2.3.19, fixed in 2.3.29; from 2.5.4, fixed in 2.5.12; from 2.6.0, fixed in 2.6.8; from 2.4.9, through 2.4.10.

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