CVE-2025-43857 | net-imap up to 0.2.4/0.3.8/0.4.19/0.5.6 on Ruby Response Net::IMAP resource consumption (GHSA-j3g3-5qv5-52mj / EUVD-2025-12559)
A vulnerability, which was classified as problematic, was found in net-imap up to 0.2.4/0.3.8/0.4.19/0.5.6 on Ruby. This issue affects the function Net::IMAP of the component Response Handler. The manipulation results in resource consumption.
This vulnerability is known as CVE-2025-43857. It is possible to launch the attack remotely. No exploit is available.
You should upgrade the affected component.