docs(cloudflare-one): fix BYOPKI cert generation commands and clarify OIDC Claims selector scope#29424
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ranbel merged 6 commits intocloudflare:productionfrom Mar 30, 2026
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…scope note - Fix openssl command to include required RFC 5280 extensions (basicConstraints and keyUsage) missing from the generated CA cert. Without these, Python 3.13+ ssl.VERIFY_X509_STRICT breaks HTTPS requests for devices using WARP with a BYOPKI certificate. - Annotate optional steps (directory creation) and add impact notes for key size and certificate expiry choices. - Add validation step to verify RFC 5280 extensions before upload. - Add troubleshooting section for Python 3.13+ SSL errors with WARP, including a temporary workaround for users unable to rotate immediately. - Clarify that the OIDC Claims Gateway selector is only available for the Generic OIDC integration, not named providers like Okta or Entra ID.
Encore-Encore
requested review from
a team,
Maddy-Cloudflare,
codyanthony850 and
ranbel
as code owners
- Add OpenSSL 1.1.1+ minimum version requirement and version check command, since -addext was introduced in 1.1.1 - Add openssl.cnf-based fallback command for systems running older OpenSSL versions - Replace (Recommended) inline prefix with :::tip callout block to match project conventions - Expand Python workaround snippet to show how to pass the SSL context to urllib and note the pattern for third-party libraries
ranbel
approved these changes
Mar 30, 2026
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Summary
opensslcommand for BYOPKI cert generation — the existingopenssl req -x509command did not include thebasicConstraintsandkeyUsageextensions required by RFC 5280 for CA certificates. Python 3.13+ enablesssl.VERIFY_X509_STRICTby default, which enforces RFC 5280 compliance, causing HTTPS requests to silently fail for devices using the Cloudflare One Client with a custom certificate generated from the current docs.Files changed
src/content/docs/cloudflare-one/team-and-resources/devices/user-side-certificates/custom-certificate.mdxsrc/content/docs/cloudflare-one/traffic-policies/identity-selectors.mdx