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Test your applicationsUpgrade code.gitea.io/gitea/modules/setting to version 1.25.0-rc0 or higher.
Affected versions of this package are vulnerable to Insecure Default Initialization of Resource due to insecure default SSH server configuration, which advertises weak or deprecated key exchange, MAC, and host key algorithms. An attacker can compromise the confidentiality and integrity of SSH connections by exploiting these weak cryptographic settings.