GHSA-xffp-6w68-4775
Zendframework Remote Address Spoofing Vector in `Zend\Http\PhpEnvironment\RemoteAddress`
The Zend\Http\PhpEnvironment\RemoteAddress class provides features around detecting the internet protocol (IP) address for an incoming proxied request via the X-Forwarded-For header, taking into account a provided list of trusted proxy server IPs. Prior to 2.2.5, the class was not taking into account whether or not the IP address contained in PHP's $_SERVER['REMOTE_ADDR'] was in the trusted proxy server list.
The IETF draft specification indicates that if $_SERVER['REMOTE_ADDR'] is not a trusted proxy, it must be considered the originating IP address, and the value of X-Forwarded-For must be disregarded.
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
- High
- Availability
- None
What each source reports
GitHub Advisories Score used
Zendframework Remote Address Spoofing Vector in `Zend\Http\PhpEnvironment\RemoteAddress`
The Zend\Http\PhpEnvironment\RemoteAddress class provides features around detecting the internet protocol (IP) address for an incoming proxied request via the X-Forwarded-For header, taking into account a provided list of trusted proxy server IPs. Prior to 2.2.5, the class was not taking into account whether or not the IP address contained in PHP's $_SERVER['REMOTE_ADDR'] was in the trusted proxy server list.
The IETF draft specification indicates that if $_SERVER['REMOTE_ADDR'] is not a trusted proxy, it must be considered the originating IP address, and the value of X-Forwarded-For must be disregarded.
- Record
GHSA-xffp-6w68-4775- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
OSV
Zendframework Remote Address Spoofing Vector in `Zend\Http\PhpEnvironment\RemoteAddress`
The Zend\Http\PhpEnvironment\RemoteAddress class provides features around detecting the internet protocol (IP) address for an incoming proxied request via the X-Forwarded-For header, taking into account a provided list of trusted proxy server IPs. Prior to 2.2.5, the class was not taking into account whether or not the IP address contained in PHP's $_SERVER['REMOTE_ADDR'] was in the trusted proxy server list.
The IETF draft specification indicates that if $_SERVER['REMOTE_ADDR'] is not a trusted proxy, it must be considered the originating IP address, and the value of X-Forwarded-For must be disregarded.
- Record
GHSA-xffp-6w68-4775- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
zendframework/zendframeworkPackagist | 2.2.0 up to 2.2.5 | 2.2.5 |
zendframework/zendframeworkPackagist | 2.2.0 up to 2.2.5, plus listed versions 2.2.12.2.22.2.32.2.4 | 2.2.5 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-xffp-6w68-4775 is a high vulnerability (CVSS 7.5) in zendframework/zendframework, published June 7, 2024. No source lists public exploit code. Fixed in zendframework/zendframework 2.2.5.
References
github.com/zendframework/zendframework/commit/bb6784461d3b23ef1db4be8cf47957ccc3b681ed
framework.zend.com/security/advisory/ZF2013-04