I/O watcher failed: Invalid characters in ¥£¡�kjih9876ÀwÀsÄÃÂÁ����À§m header at /usr/local/share/perl5/Mojo/Content.pm line 247.

[squizzster]

Hi Mojo Fans, (I am one)

I've been developing for a while now using Mojolicious and today for the first time I noticed the following in the logs:
Mojo::Reactor::Poll: I/O watcher failed: Invalid characters in ¥£¡�kjih9876ÀwÀsÄÃÂÁ����À§m header at /usr/local/share/perl5/Mojo/Content.pm line 247.
I am using:
Perl: | v5.26.3 (linux)
Mojolicious: | 9.02 (Waffle)

Everything seemed to carry on as normal.
I assume it is some vulnerability scanner or similar inserting "stuff" into the header... not 100% sure.

I am not concerned about it however it's an anomaly so I thought I would report it and.or seek views.

Big clap to the developers.

Thank you,
Mark

[squizzster]

Looks like it's caused by this line:
tr/\x0d\x0a// and croak "Invalid characters in $name header" for @_;
Headers.pm

So must be some new buffer overflow exploit as I've seen it again today in the logs.