> Am 02.07.2025 um 15:38 schrieb Larry Campbell via curl-library 
> <[email protected]>:
> 
> Context: curl 8.11.1, built with nghttp2/nghttp3/ngtcp2 and openssl.
> 
> I use CURLINFO_TLS_SSL_PTR to capture the peer certificate and certificate 
> chain. This works fine with HTTP/1 and HTTP/2. But with HTTP/3, the 
> CURLINFO_TLS_SSL_PTR returns NULL in the curl_tlssessioninfo 'internals' 
> variable. (It does, as expected, return CURLSSLBACKEND_OPENSSL in the 
> 'backend' variable.)
> 
> Am I doing something wrong, or is this an inherent limitation of the HTTP/3 
> implementation?

This is currently not supported for HTTP/3. More of an oversight, really.

I created https://github.com/curl/curl/issues/17801 to track this and will work 
on implementing this for the next version.

Kind Regards.
Stefan

> 
> - lc
> 
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