/ 
perl-5.36.0
⭐ Starred 2013 / Test2::Event::V2
Security Advisories (9)
CVE-2024-56406 (2025-04-13)

A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. When there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`.    $ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;'    Segmentation fault (core dumped) It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.

CVE-2023-47038 (2023-10-30)

A crafted regular expression when compiled by perl 5.30.0 through 5.38.0 can cause a one attacker controlled byte buffer overflow in a heap allocated buffer

CVE-2023-47100

In Perl before 5.38.2, S_parse_uniprop_string in regcomp.c can write to unallocated space because a property name associated with a \p{...} regular expression construct is mishandled. The earliest affected version is 5.30.0.

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-2026-13221 (2026-07-13)

Perl versions through 5.43.9 produce silently incorrect regular expression matches when an alternation of more than 65535 fixed string branches is compiled into a trie in Perl_study_chunk. When such branches are combined into a trie, the delta between the first branch and the shared tail is stored in a 16-bit field. A branch count above 65535 overflows the field, and the trie's match decision table is truncated with no warning or error. A pattern of this shape produces false positive matches (matching strings it should not) and false negative matches (failing to match strings it should). When such a pattern gates an access or filtering decision, the result is wrong.

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-2026-57432 (2026-07-13)

Perl versions through 5.43.10 have an integer overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpack. S_measure_struct adds each item's size times its repeat count to a running total with no overflow check, so a large repeat count in a pack or unpack template wraps the signed SSize_t total negative. The @, X, and x position codes then guard their moves with a signed length comparison that passes when the length is negative, advancing the buffer pointer out of bounds. A template derived from untrusted input can read heap memory past the buffer and return it to the caller.

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.

CVE-2023-47039 (2023-10-30)

Perl for Windows relies on the system path environment variable to find the shell (cmd.exe). When running an executable which uses Windows Perl interpreter, Perl attempts to find and execute cmd.exe within the operating system. However, due to path search order issues, Perl initially looks for cmd.exe in the current working directory. An attacker with limited privileges can exploit this behavior by placing cmd.exe in locations with weak permissions, such as C:\ProgramData. By doing so, when an administrator attempts to use this executable from these compromised locations, arbitrary code can be executed.

NAME

Test2::Event::V2 - Second generation event.

DESCRIPTION

This is the event type that should be used instead of Test2::Event or its legacy subclasses.

SYNOPSIS

USING A CONTEXT

use Test2::API qw/context/;

sub my_tool {
    my $ctx = context();

    my $event = $ctx->send_ev2(info => [{tag => 'NOTE', details => "This is a note"}]);

    $ctx->release;

    return $event;
}

USING THE CONSTRUCTOR

use Test2::Event::V2;

my $e = Test2::Event::V2->new(
    trace => {frame => [$PKG, $FILE, $LINE, $SUBNAME]},
    info  => [{tag => 'NOTE', details => "This is a note"}],
);

METHODS

This class inherits from Test2::Event.

$fd = $e->facet_data()

This will return a hashref of facet data. Each facet hash will be a shallow copy of the original.

$about = $e->about()

This will return the 'about' facet hashref.

NOTE: This will return the internal hashref, not a copy.

$trace = $e->trace()

This will return the 'trace' facet, normally blessed (but this is not enforced when the trace is set using set_trace().

NOTE: This will return the internal trace, not a copy.

MUTATION

$e->add_amnesty({...})

Inherited from Test2::Event. This can be used to add 'amnesty' facets to an existing event. Each new item is added to the END of the list.

NOTE: Items ARE blessed when added.

$e->add_hub({...})

Inherited from Test2::Event. This is used by hubs to stamp events as they pass through. New items are added to the START of the list.

NOTE: Items ARE NOT blessed when added.

$e->set_uuid($UUID)

Inherited from Test2::Event, overridden to also vivify/mutate the 'about' facet.

$e->set_trace($trace)

Inherited from Test2::Event which allows you to change the trace.

Note: This method does not bless/clone the trace for you. Many things will expect the trace to be blessed, so you should probably do that.

LEGACY SUPPORT METHODS

These are all imported from Test2::Util::Facets2Legacy, see that module or Test2::Event for documentation on what they do.

causes_fail
diagnostics
global
increments_count
no_display
sets_plan
subtest_id
summary
terminate

THIRD PARTY META-DATA

This object consumes Test2::Util::ExternalMeta which provides a consistent way for you to attach meta-data to instances of this class. This is useful for tools, plugins, and other extensions.

SOURCE

The source code repository for Test2 can be found at http://github.com/Test-More/test-more/.

MAINTAINERS

Chad Granum <exodist@cpan.org>

AUTHORS

Chad Granum <exodist@cpan.org>

COPYRIGHT

Copyright 2020 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/