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CVE-2015-2309 fixes some unsafe methods in the Request class.
April 1, 2015 #Security Advisories
CVE-2014-6072 is about fixing a CSRF vulnerability in the Web Profiler.
September 3, 2014 #Security Advisories
CVE-2014-6061 is about a potential security issue when parsing the Authorization header.
September 3, 2014 #Security Advisories
CVE-2014-5245 is about being able to access ESI URLs even behind a trusted proxy.
September 3, 2014 #Security Advisories
CVE-2014-5244 is about a potential denial of service with a malicious HTTP Host header.
September 3, 2014 #Security Advisories
Symfony 2.3.18, 2.4.8, and 2.5.2 have just been released; they contain a security fix for the Translator class provided by FrameworkBundle (CVE-2014-4931).
July 15, 2014 #Security Advisories
Symfony 2.0.25, 2.1.13, 2.2.9, and 2.3.6 have just been released; they contain a security fix for the Security component (CVE-2013-5958).
October 10, 2013 #Security Advisories
A security issue has been discovered in FOSUserBundle (CVE-2013-5750).
September 23, 2013 #Security Advisories
Symfony 2.0.24, 2.1.12, 2.2.5, and 2.3.3 have just been released and they contain security fixes for the Validator component (CVE-2013-4751) and the HttpFoundation component (CVE-2013-4752).
August 7, 2013 #Security Advisories
Symfony 2.0.22 and Symfony 2.1.7 have just been released and they both contain security fixes for the YAML component (CVE-2013-1348 and CVE-2013-1397).
January 17, 2013 #Security Advisories