A severe vulnerability has been disclosed in libpurple, the library used in the development of a number of popular instant messaging clients, including Adium for the macOS platform.

Users of secure messaging apps such as Pidgin, Adium and others built upon libotr, the Off-the-Record protocol, are being urged to update immediately to current versions after the discovery of a critical flaw that can be used in targeted attacks to expose encrypted communication. The OTR development team yesterday pushed out libotr 4.1.1 which patches...