Affected versions¶ Symfony >=2.8.0, <3.4.48 || >= 4.0.0, <4.4.23 || >= 5.0.0, <5.2.8 versions of the Symfony Security, Security Guard, Security Core, and Security HTTP components are affected by this security issue. The issue has been fixed in Symfony 3.4.48, 4.4.23, 5.2.8, and 5.3.0 beta4. All other affected minor versions of Symfony won’t be patched as they are not maintained anymore. Description¶ The ability to enumerate users was possible without relevant permissions due to different exception messages depending on whether the user existed or not. It was also possible to enumerate users by using a timing attack, by comparing time elapsed when authenticating an existing user and authenticating a non-existing user. We now ensure that 403s are returned whether the user exists or not if the password is invalid or if the user does not exist. The patch for this issue is available here for branch 3.4. Credits¶ I would like to thank James Isaac and Mathias Brodala for reporting the issue and Robin Chalas for fixing the issue.
Sponsor the Symfony project.Login to add comment
Other posts in this group
Nous sommes heureux de vous annoncer le retour des meetups Symfony à Tunis !🎉 Rejoignez dès maintenant le groupe "Symfony User group Tunis" pour suivre les actualités et futurs meetup de la communauté
This week, Symfony 6.4.20 and 7.2.5 maintenance versions were released. In addition, Symfony successfully celebrated the SymfonyLive Paris 2025 conference and continued preparations for next week's Sy
Symfony 6.4.20 has just been released. Here is the list of the most important changes since 6.4.19:
bug #60054 [Form] Use duplicate_preferred_choices to set value of ChoiceType (@aleho)bug #5985
Symfony 7.2.5 has just been released. Here is the list of the most important changes since 7.2.4:
bug #60054 [Form] Use duplicate_preferred_choices to set value of ChoiceType (@aleho)bug #60026
SymfonyLive Berlin 2025 is almost here! Join us next week for an exciting event filled with fresh talks, inspiring speakers, and everything you need to make the most of this incredible gatheri
After announcing the Symfony UX Core Team and adding more core team members earlier this year, I'm back again with a great addition to the Symfony Core Team. I'm very excited to announce that Tugdual
This week, the upcoming Symfony 7.3 version updated its default configuration to exclude container extensions, entities and messenger messages when registering services, and made some changes related
