[CF1] clarify cipher suite usage in Cloudflare Tunnel TLS connections #25994
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deadlypants1973
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a team,
nikitacano and
ranbel
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deadlypants1973
commented
Oct 22, 2025
...ocs/cloudflare-one/networks/connectors/cloudflare-tunnel/configure-tunnels/cipher-suites.mdx
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This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:
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nikitacano
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Oct 22, 2025
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| Cloudflare Tunnel connections use the cipher suites supported by `cloudflared`, which relies on the Go TLS library for its TLS implementation. When establishing a TLS connection to your origin, `cloudflared` will negotiate the most secure cipher suite supported by both sides. | ||
| Cloudflare Tunnel connections use the cipher suites supported by `cloudflared`, which relies on the Go TLS library for its TLS implementation. These cipher suites apply to both the TLS connection between Cloudflare's network and `cloudflared`, and the HTTPS connection between `cloudflared` and your origin, even when [`noTLSVerify`](/cloudflare-one/networks/connectors/cloudflare-tunnel/configure-tunnels/cloudflared-parameters/origin-parameters/#notlsverify) is set to `false`. In both cases, `cloudflared` negotiates the most secure cipher suite supported by both sides. |
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I'm not sure about "even when noTLSVerify" wording.
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nikitacano
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Oct 29, 2025
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Summary
PCX-16962
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