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UTL_HTTP call to https site fails ORA-28750: Unknown Error after Upgrade To 12.2, But works in 12.1 DB (Doc ID 2459858.1)

Last updated on APRIL 17, 2023

Applies to:

PL/SQL - Version to [Release 12.2]
Advanced Networking Option - Version to [Release 12.2]
Information in this document applies to any platform.


utl_http fails with "ORA-28750: unknown error" after upgrading to 12.2 database.

The same utl_http was working fine in 12.1 version


SQL> SELECT UTL_HTTP.request ('https://************','<proxy server>:<port>','file:<wallet path>','<wallet password>') FROM DUAL;
ERROR at line 1:
ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1501
ORA-28750: unknown error
ORA-06512: at "SYS.UTL_HTTP", line 380
ORA-06512: at "SYS.UTL_HTTP", line 1441
ORA-06512: at line 1



 With SNI support starting in 12.2, validate certificate sent back from the server with the host name may fail when it should have passed.


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