FATAL: invalid pct-encoded triplet

Andrea Venturoli <[email protected]> Thu, 5 Feb 2026 15:44:07 +0100

Newsgroups	gmane.comp.web.squid.general
Message-ID	<[email protected]>

Hello.

Running Squid 7.3 on several boxes.
In the last couple of days it has been crashing on one.

Last time I captured this in the logs:
> 2026/02/05 15:22:10 kid1| WARNING: dns-mime-type ACL is used in context without an HTTP response. Assuming mismatch.
>     current master transaction: master72
> 2026/02/05 15:22:10 kid1| FATAL: invalid pct-encoded triplet
>     exception location: Uri.cc(102) Decode
>     current master transaction: master72
> 2026/02/05 15:22:10| Removing PID file (/var/run/squid/squid.pid)

The first two lines are quite common.
I searched for the subsequent messages, which seem to be the interesting 
ones, but found nothing.

I'll try to upgrade to 7.4 and possibly get a core dump, but if someone 
has any hint in the meantime...

  bye & Thanks
	av.