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perl-5.42.0
⭐ Starred 2013 / TAP::Object
Security Advisories (4)
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.

NAME

TAP::Object - Base class that provides common functionality to all TAP::* modules

VERSION

Version 3.50

SYNOPSIS

package TAP::Whatever;

use strict;

use base 'TAP::Object';

# new() implementation by TAP::Object
sub _initialize {
    my ( $self, @args) = @_;
    # initialize your object
    return $self;
}

# ... later ...
my $obj = TAP::Whatever->new(@args);

DESCRIPTION

TAP::Object provides a default constructor and exception model for all TAP::* classes. Exceptions are raised using Carp.

METHODS

Class Methods

new

Create a new object. Any arguments passed to new will be passed on to the "_initialize" method. Returns a new object.

Instance Methods

_initialize

Initializes a new object. This method is a stub by default, you should override it as appropriate.

Note: "new" expects you to return $self or raise an exception. See "_croak", and Carp.

_croak

Raise an exception using croak from Carp, eg:

$self->_croak( 'why me?', 'aaarrgh!' );

May also be called as a class method.

$class->_croak( 'this works too' );

_confess

Raise an exception using confess from Carp, eg:

$self->_confess( 'why me?', 'aaarrgh!' );

May also be called as a class method.

$class->_confess( 'this works too' );

_construct

Create a new instance of the specified class.

mk_methods

Create simple getter/setters.

__PACKAGE__->mk_methods(@method_names);