Potential leak of left-over heap data if custom error page templates containing special non-standard variables are used. Tinyproxy commit 84f203f and earlier use uninitialized buffers in process_request() function.
https://security.gentoo.org/glsa/202305-27
https://github.com/tinyproxy/tinyproxy/issues/457#issuecomment-1264176815
https://github.com/tinyproxy/tinyproxy/issues/457
https://github.com/tinyproxy/tinyproxy/blob/84f203fb1c4733608c7283bbe794005a469c4b00/src/reqs.c#L346