CVE-2024-50345

Description

The Request class, does not parse URI with special characters the same way browsers do. As a result, an attacker can trick a validator relying on the Request class to redirect users to another domain.

Resolution

The Request::create methods now assert the URI does not contain invalid characters as defined by https://url.spec.whatwg.org/

The patch for this issue is available here for branch 5.4.

Credits

We would like to thank Sam Mush - IPASSLab && ZGC Lab for reporting the issue and Nicolas Grekas for providing the fix.

Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites. Typical impact: phishing and credential harvesting via a trusted domain.

CVE-2024-50345 has a CVSS score of 3.1 (Low). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (5.4.46, 6.4.14, 7.1.7); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is CVE-2024-50345? CVE-2024-50345 is a low-severity open redirect vulnerability in symfony/http-foundation (composer), affecting versions < 5.4.46. It is fixed in 5.4.46, 6.4.14, 7.1.7. Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites.
2. How severe is CVE-2024-50345? CVE-2024-50345 has a CVSS score of 3.1 (Low). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of symfony/http-foundation are affected by CVE-2024-50345? symfony/http-foundation (composer) versions < 5.4.46 is affected.
4. Is there a fix for CVE-2024-50345? Yes. CVE-2024-50345 is fixed in 5.4.46, 6.4.14, 7.1.7. Upgrade to this version or later.
5. Is CVE-2024-50345 exploitable, and should I be worried? Whether CVE-2024-50345 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2024-50345 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2024-50345?
   • Upgrade symfony/http-foundation to 5.4.46 or later
   • Upgrade symfony/http-foundation to 6.4.14 or later
   • Upgrade symfony/http-foundation to 7.1.7 or later