Re: [PoC] Federated Authn/z with OAUTHBEARER

On Wed, Mar 19, 2025 at 12:57:29AM -0400, Tom Lane wrote:
> * Given libcurl's very squishy portfolio:
>
> libcurl is a free and easy-to-use client-side URL transfer library, supporting
> FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS, FILE, IMAP,
> SMTP, POP3 and RTSP. libcurl supports SSL certificates, HTTP POST, HTTP PUT,
> FTP uploading, HTTP form based upload, proxies, cookies, user+password
> authentication (Basic, Digest, NTLM, Negotiate, Kerberos4), file transfer
> resume, http proxy tunneling and more.
>
> it's not exactly hard to imagine them growing a desire to handle
> "postgresql://" URLs, which they would surely do by invoking libpq.
> Then we'll have circular build dependencies and circular runtime
> dependencies, not to mention inter-library recursion at runtime.
>
>
> This is not quite a hill that I wish to die on, but I will
> flatly predict that we will regret this.

I regularly see curl security fixes in my Debian updates, so there is a
security issue that any serious curl bug could also make Postgres
vulnerable. I might be willing to die on that hill.

--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com

Do not let urgent matters crowd out time for investment in the future.