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GHSA-vfm6-r2gc-pwww

Symfony2 security issue when the trust proxy mode is enabled

No scoreFix available

GHSA-vfm6-r2gc-pwww is a vulnerability with no CVSS score yet in symfony/symfony, published May 30, 2024. No source lists public exploit code. Fixed in symfony/http-foundation 2.0.19.

What does this mean?
Severity
UnratedNo CVSS score yet
Exploit chance
UnscoredNo EPSS score yet
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
2.0.19symfony/http-foundation +7 more

Description

An application is vulnerable if it uses the client IP address as returned by the Request::getClientIp() method for sensitive decisions like IP based access control.

To fix this security issue, the following changes have been made to all versions of Symfony2:

A new Request::setTrustedProxies() method has been introduced and should be used intead of Request::trustProxyData() to enable the trust proxy mode. It takes an array of trusted proxy IP addresses as its argument:

// before (probably in your front controller script)
Request::trustProxyData();

// after
Request::setTrustedProxies(array('1.1.1.1'));
// 1.1.1.1 being the IP address of a trusted reverse proxy

The Request::trustProxyData() method has been deprecated (when used, it automatically trusts the latest proxy in the chain -- which is the current remote address):

Request::trustProxyData();

// is equivalent to
Request::setTrustedProxies(array($request->server->get('REMOTE_ADDR')));

We encourage all Symfony2 users to upgrade as soon as possible. It you don't want to upgrade to the latest version yet, you can also apply the following patches:

Affected packages

Affected packages
PackageAffectedFixed
symfony/http-foundation
Packagist
2.0.0 up to 2.0.19
2.0.19
symfony/http-foundation
Packagist
2.1.0 up to 2.1.4
2.1.4
symfony/symfony
Packagist
2.0.0 up to 2.0.19
2.0.19
symfony/symfony
Packagist
2.1.0 up to 2.1.4
2.1.4
symfony/http-foundation
Packagist
2.0.0 up to 2.0.19, plus listed versions
2.0.42.0.52.0.62.0.7v2.0.10
Show 8 moreShow less
v2.0.12v2.0.13v2.0.14v2.0.15v2.0.16v2.0.17v2.0.18v2.0.9
2.0.19
symfony/http-foundation
Packagist
2.1.0 up to 2.1.4, plus listed versions
v2.1.0v2.1.1v2.1.2v2.1.3
2.1.4
symfony/symfony
Packagist
2.0.0 up to 2.0.19, plus listed versions
2.0.42.0.52.0.62.0.7v2.0.10
Show 9 moreShow less
v2.0.11v2.0.12v2.0.13v2.0.14v2.0.15v2.0.16v2.0.17v2.0.18v2.0.9
2.0.19
symfony/symfony
Packagist
2.1.0 up to 2.1.4, plus listed versions
v2.1.0v2.1.1v2.1.2v2.1.3
2.1.4

What each source reports

GitHub AdvisoriesNo score

Symfony2 security issue when the trust proxy mode is enabled

An application is vulnerable if it uses the client IP address as returned by the Request::getClientIp() method for sensitive decisions like IP based access control.

To fix this security issue, the following changes have been made to all versions of Symfony2:

A new Request::setTrustedProxies() method has been introduced and should be used intead of Request::trustProxyData() to enable the trust proxy mode. It takes an array of trusted proxy IP addresses as its argument:

// before (probably in your front controller script)
Request::trustProxyData();

// after
Request::setTrustedProxies(array('1.1.1.1'));
// 1.1.1.1 being the IP address of a trusted reverse proxy

The Request::trustProxyData() method has been deprecated (when used, it automatically trusts the latest proxy in the chain -- which is the current remote address):

Request::trustProxyData();

// is equivalent to
Request::setTrustedProxies(array($request->server->get('REMOTE_ADDR')));

We encourage all Symfony2 users to upgrade as soon as possible. It you don't want to upgrade to the latest version yet, you can also apply the following patches:

Record
GHSA-vfm6-r2gc-pwww
Updated
2026-11-02
OSVNo score

Symfony2 security issue when the trust proxy mode is enabled

An application is vulnerable if it uses the client IP address as returned by the Request::getClientIp() method for sensitive decisions like IP based access control.

To fix this security issue, the following changes have been made to all versions of Symfony2:

A new Request::setTrustedProxies() method has been introduced and should be used intead of Request::trustProxyData() to enable the trust proxy mode. It takes an array of trusted proxy IP addresses as its argument:

// before (probably in your front controller script)
Request::trustProxyData();

// after
Request::setTrustedProxies(array('1.1.1.1'));
// 1.1.1.1 being the IP address of a trusted reverse proxy

The Request::trustProxyData() method has been deprecated (when used, it automatically trusts the latest proxy in the chain -- which is the current remote address):

Request::trustProxyData();

// is equivalent to
Request::setTrustedProxies(array($request->server->get('REMOTE_ADDR')));

We encourage all Symfony2 users to upgrade as soon as possible. It you don't want to upgrade to the latest version yet, you can also apply the following patches:

Record
GHSA-vfm6-r2gc-pwww
Updated
2026-11-02

History

History
RecordedChangedSources
first indexedGitHub Advisories, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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