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curle_ssh
Easy Fix
cURL · libcurl & CLI
libcurl code CURLE_SSH indicates ssh during protocol-specific command exchange.
Quick Answer
Error code CURLE_SSH on your cURL libcurl & CLI means: libcurl code CURLE_SSH indicates ssh during protocol-specific command exchange.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
LIBCURL-EMBED7.797.817.847.888.08.28.48.68.8LINUX-CLIMACOS-CLI
Likely Causes
  1. CURLE_SSH was returned while libcurl handled a request stage related to protocol-specific command exchange.
  2. Command options, endpoint behavior, or intermediary network components are incompatible with expected transfer flow.
  3. Runtime environment specifics (proxy, cert store, protocol support, or callback behavior) contributed to CURLE_SSH.
How to Fix It
1
Capture verbose output (-v / --trace) and isolate the exact phase where CURLE_SSH appears.
2
Reproduce ssh with a minimal request against a known-good endpoint.
3
Validate protocol, TLS, DNS, proxy, and timeout options tied to protocol-specific command exchange.
4
Adjust one option at a time until CURLE_SSH clears and transfer completes successfully.
5
Lock the fix into scripts/clients and monitor for CURLE_SSH regression.
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Related Error Codes
CURLE_ABORTED_BY_CALLBACKCURLE_AGAINCURLE_AUTH_ERRORCURLE_BAD_CONTENT_ENCODINGCURLE_BAD_DOWNLOAD_RESUME
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