CVE-2015-2309
Symfony has unsafe methods in the Request class
All 2.0.X, 2.1.X, 2.2.X, 2.3.X, 2.4.X, 2.5.X, and 2.6.X versions of the Symfony HttpFoundation component are affected by this security issue.
This issue has been fixed in Symfony 2.3.27, 2.5.11, and 2.6.6. Note that no fixes are provided for Symfony 2.0, 2.1, 2.2, and 2.4 as they are not maintained anymore.
Description
The Symfony\Component\HttpFoundation\Request class provides a mechanism that ensures it does not trust HTTP header values coming from a "non-trusted" client. Unfortunately, it assumes that the remote address is always a trusted client if at least one trusted proxy is involved in the request; this allows a man-in-the-middle attack between the latest trusted proxy and the web server.
The following methods are impacted: getPort(), isSecure(), and getHost(), and getClientIps().
Resolution
All impacted methods now check that the remote address is trusted, which fixes the issue.
The patch for this issue is available here.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
What each source reports
GitHub Advisories Score usedGHSA-p684-f7fh-jv2j
Symfony has unsafe methods in the Request class
All 2.0.X, 2.1.X, 2.2.X, 2.3.X, 2.4.X, 2.5.X, and 2.6.X versions of the Symfony HttpFoundation component are affected by this security issue.
This issue has been fixed in Symfony 2.3.27, 2.5.11, and 2.6.6. Note that no fixes are provided for Symfony 2.0, 2.1, 2.2, and 2.4 as they are not maintained anymore.
Description
The Symfony\Component\HttpFoundation\Request class provides a mechanism that ensures it does not trust HTTP header values coming from a "non-trusted" client. Unfortunately, it assumes that the remote address is always a trusted client if at least one trusted proxy is involved in the request; this allows a man-in-the-middle attack between the latest trusted proxy and the web server.
The following methods are impacted: getPort(), isSecure(), and getHost(), and getClientIps().
Resolution
All impacted methods now check that the remote address is trusted, which fixes the issue.
The patch for this issue is available here.
- Record
GHSA-p684-f7fh-jv2j- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
OSVGHSA-p684-f7fh-jv2j
Symfony has unsafe methods in the Request class
All 2.0.X, 2.1.X, 2.2.X, 2.3.X, 2.4.X, 2.5.X, and 2.6.X versions of the Symfony HttpFoundation component are affected by this security issue.
This issue has been fixed in Symfony 2.3.27, 2.5.11, and 2.6.6. Note that no fixes are provided for Symfony 2.0, 2.1, 2.2, and 2.4 as they are not maintained anymore.
Description
The Symfony\Component\HttpFoundation\Request class provides a mechanism that ensures it does not trust HTTP header values coming from a "non-trusted" client. Unfortunately, it assumes that the remote address is always a trusted client if at least one trusted proxy is involved in the request; this allows a man-in-the-middle attack between the latest trusted proxy and the web server.
The following methods are impacted: getPort(), isSecure(), and getHost(), and getClientIps().
Resolution
All impacted methods now check that the remote address is trusted, which fixes the issue.
The patch for this issue is available here.
- Record
GHSA-p684-f7fh-jv2j- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2015-2309 No score
Unsafe methods in the Request class
- Record
UBUNTU-CVE-2015-2309- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
symfony/http-foundationPackagist |
2.0.0 up to 2.3.27 | 2.3.27 |
symfony/http-foundationPackagist |
2.4.0 up to 2.5.11 | 2.5.11 |
symfony/http-foundationPackagist |
2.6.0 up to 2.6.6 | 2.6.6 |
symfony/symfonyPackagist |
2.0.0 up to 2.3.27 | 2.3.27 |
symfony/symfonyPackagist |
2.4.0 up to 2.5.11 | 2.5.11 |
symfony/symfonyPackagist |
2.6.0 up to 2.6.6 | 2.6.6 |
symfonyDebian:12 |
before 2.3.21+dfsg-4 | 2.3.21+dfsg-4 |
symfonyDebian:13 |
before 2.3.21+dfsg-4 | 2.3.21+dfsg-4 |
symfonyDebian:14 |
before 2.3.21+dfsg-4 | 2.3.21+dfsg-4 |
symfony/http-foundationPackagist |
2.0.0 up to 2.3.27, plus listed versions 2.0.42.0.52.0.62.0.7v2.0.10 Show 45 moreShow lessv2.0.12v2.0.13v2.0.14v2.0.15v2.0.16v2.0.17v2.0.18v2.0.19v2.0.20v2.0.21v2.0.22v2.0.23v2.0.24v2.0.25v2.0.9v2.1.0v2.1.1v2.1.10v2.1.11v2.1.12v2.1.13v2.1.2v2.1.3v2.1.4v2.1.5v2.1.6v2.1.7v2.1.8v2.1.9v2.2.0v2.2.1v2.2.10v2.2.11v2.2.2v2.2.3v2.2.4v2.2.5v2.2.6v2.2.7v2.2.8v2.2.9v2.3.0v2.3.1v2.3.10v2.3.11 |
2.3.27 |
Show 5 moreShow less
| Package | Affected | Fixed |
|---|---|---|
symfony/http-foundationPackagist |
2.4.0 up to 2.5.11, plus listed versions v2.4.0v2.4.1v2.4.10v2.4.2v2.4.3 Show 20 moreShow lessv2.4.4v2.4.5v2.4.6v2.4.7v2.4.8v2.4.9v2.5.0v2.5.0-BETA1v2.5.0-BETA2v2.5.0-RC1v2.5.1v2.5.10v2.5.2v2.5.3v2.5.4v2.5.5v2.5.6v2.5.7v2.5.8v2.5.9 |
2.5.11 |
symfony/http-foundationPackagist |
2.6.0 up to 2.6.6, plus listed versions v2.6.0v2.6.1v2.6.2v2.6.3v2.6.4v2.6.5 |
2.6.6 |
symfony/symfonyPackagist |
2.0.0 up to 2.3.27, plus listed versions 2.0.42.0.52.0.62.0.7v2.0.10 Show 45 moreShow lessv2.0.11v2.0.12v2.0.13v2.0.14v2.0.15v2.0.16v2.0.17v2.0.18v2.0.19v2.0.20v2.0.21v2.0.22v2.0.23v2.0.24v2.0.25v2.0.9v2.1.0v2.1.0-BETA1v2.1.0-BETA2v2.1.0-BETA3v2.1.0-BETA4v2.1.0-RC1v2.1.0-RC2v2.1.1v2.1.10v2.1.11v2.1.12v2.1.13v2.1.2v2.1.3v2.1.4v2.1.5v2.1.6v2.1.7v2.1.8v2.1.9v2.2.0v2.2.0-BETA1v2.2.0-BETA2v2.2.0-RC1v2.2.0-RC2v2.2.0-RC3v2.2.1v2.2.10v2.2.11 |
2.3.27 |
symfony/symfonyPackagist |
2.4.0 up to 2.5.11, plus listed versions v2.4.0v2.4.1v2.4.10v2.4.2v2.4.3 Show 20 moreShow lessv2.4.4v2.4.5v2.4.6v2.4.7v2.4.8v2.4.9v2.5.0v2.5.0-BETA1v2.5.0-BETA2v2.5.0-RC1v2.5.1v2.5.10v2.5.2v2.5.3v2.5.4v2.5.5v2.5.6v2.5.7v2.5.8v2.5.9 |
2.5.11 |
symfony/symfonyPackagist |
2.6.0 up to 2.6.6, plus listed versions v2.6.0v2.6.1v2.6.2v2.6.3v2.6.4v2.6.5 |
2.6.6 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-2309 is a medium vulnerability (CVSS 5.3) in symfony/symfony, published January 1, 0001. No source lists public exploit code. Fixed in symfony/http-foundation 2.3.27.
References
github.com/symfony/symfony/pull/14166
symfony.com/cve-2015-2309
security-tracker.debian.org/tracker/CVE-2015-2309
ubuntu.com/security/CVE-2015-2309
cve.org/CVERecord?id=CVE-2015-2309
Left out here: 61 versions. The JSON record has them.