Security Advisories (3)
CVE-2025-40909 (2025-05-30)

Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6

CVE-2026-4176 (2026-03-29)

Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib. Compress::Raw::Zlib is included in the Perl package as a dual-life core module, and is vulnerable to CVE-2026-3381 due to a vendored version of zlib which has several vulnerabilities, including CVE-2026-27171. The bundled Compress::Raw::Zlib was updated to version 2.221 in Perl blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94.

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

Test2::Compare::Array - Internal representation of an array comparison.

DESCRIPTION

This module is an internal representation of an array for comparison purposes.

METHODS

$ref = $arr->inref()

If the instance was constructed from an actual array, this will return the reference to that array.

$bool = $arr->ending
$arr->set_ending($bool)

Set this to true if you would like to fail when the array being validated has more items than the check. That is, if you check indexes 0-3 but the array has values for indexes 0-4, it will fail and list that last item in the array as unexpected. If set to false then it is assumed you do not care about extra items.

$hashref = $arr->items()

Returns the hashref of key => val pairs to be checked in the array.

$arr->set_items($hashref)

Accepts a hashref to permit indexes to be skipped if desired.

Note: that there is no validation when using set_items, it is better to use the add_item interface.

$arrayref = $arr->order()

Returns an arrayref of all indexes that will be checked, in order.

$arr->set_order($arrayref)

Sets the order in which indexes will be checked.

Note: that there is no validation when using set_order, it is better to use the add_item interface.

$name = $arr->name()

Always returns the string "<ARRAY>".

$bool = $arr->verify(got => $got, exists => $bool)

Check if $got is an array reference or not.

$idx = $arr->top_index()

Returns the topmost index which is checked. This will return undef if there are no items, or 0 if there is only 1 item.

$arr->add_item($item)

Push an item onto the list of values to be checked.

$arr->add_item($idx => $item)

Add an item to the list of values to be checked at the specified index.

$arr->add_filter(sub { ... })

Add a filter sub. The filter receives all remaining values of the array being checked, and should return the values that should still be checked. The filter will be run between the last item added and the next item added.

@deltas = $arr->deltas(got => $got, convert => \&convert, seen => \%seen)

Find the differences between the expected array values and those in the $got arrayref.

SOURCE

The source code repository for Test2-Suite can be found at https://github.com/Test-More/Test2-Suite/.

MAINTAINERS

Chad Granum <exodist@cpan.org>

AUTHORS

Chad Granum <exodist@cpan.org>

COPYRIGHT

Copyright 2018 Chad Granum <exodist@cpan.org>.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See http://dev.perl.org/licenses/