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c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Long: ssl-allow-beast Help: Allow security flaw to improve interop Protocols: TLS Added: 7.25.0 Category: tls Multi: boolean See-also:

• proxy-ssl-allow-beast
• insecure Example:
• --ssl-allow-beast $URL

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--ssl-allow-beast

Do not work around a security flaw in the TLS1.0 protocol known as BEAST. If this option is not used, the TLS layer may use workarounds known to cause interoperability problems with some older server implementations.

This option only changes how curl does TLS 1.0 and has no effect on later TLS versions.

WARNING: this option loosens the TLS security, and by using this flag you ask for exactly that.