This security patch addresses a reported exploit. We have banned a Workshop file containing the exploit which had 1 active subscriber. We are not aware of any confirmed cases of players being affected by this file. (Thanks Jackzebra!)
As a reminder, please use caution when accepting unexpected server invites or joining servers from people you do not trust. We have recently seen an increase in reports involving malicious Workshop content.
Posted by the game’s developer or publisher to its Steam community hub and published by Valve through Steam’s public news API. Sifter reproduces it unedited and writes none of it.