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perl-5.42.2
⭐ Starred 2013 / Release
Security Advisories (1)
CVE-2026-8376 (2026-05-25)

Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds. Perl_study_chunk in regcomp_study.c checked the size of the joined substring buffer in characters rather than bytes. For a quantified fixed substring with a large minimum count, the byte length mincount * l could overflow SSize_t, producing an undersized SvGROW allocation; the subsequent copy writes past the end of the buffer. A caller that compiles an attacker-controlled regular expression on a 32-bit perl build triggers a heap buffer overflow at compile time.

NAME

Release Manager's Guide with Checklist for $version ($type)

Checklist

_END_BEGINNING

# Remove beginning # This can also be done with a '=for introduction' in the future $items[0]{'name'} =~ /^NAME/xmsi and shift @items;

$items[0]{'name'} =~ /^MAKING \s+ A \s+ CHECKLIST/xmsi and shift @items;

create_checklist( $type, \@items );

iterate_items( \@items, $type, sub { my $item = shift; print "=head$item->{'head'} $item->{'name'}"; print "$item->{'content'}\n"; } );

if ($html) { my $simple = Pod::Simple::HTML->new; $simple->output_fh(*STDOUT); $simple->parse_string_document($pod_output); }