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perl-5.42.0
⭐ Starred 2013 / TAP::Formatter::Base
Security Advisories (5)
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-2026-15534 (2026-08-09)

Perl versions through 5.45.1 have out-of-bounds heap reads and writes during regular expression matching via an undersized superlinear cache in S_regmatch. The regex engine's superlinear cache holds one bit per subject position for each participating WHILEM node, so the bit count is the subject length plus one times the number of nodes. Nothing checks that product for positive overflow of the signed 32-bit count: a 286331153 byte subject matched against a pattern with 15 participating nodes stores the count as 14, leaving a two byte cache. The cache is then indexed from the real match position and node number, so reads go past the end of the allocation, and on failure CACHEsayNO sets a bit past it. A caller that matches an attacker controlled subject of this size against a pattern of this shape can crash the process or corrupt heap memory.

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::Formatter::Base - Base class for harness output delegates

VERSION

Version 3.50

DESCRIPTION

This provides console orientated output formatting for TAP::Harness.

SYNOPSIS

use TAP::Formatter::Console;
my $harness = TAP::Formatter::Console->new( \%args );

METHODS

Class Methods

new

my %args = (
   verbose => 1,
)
my $harness = TAP::Formatter::Console->new( \%args );

The constructor returns a new TAP::Formatter::Console object. If a TAP::Harness is created with no formatter a TAP::Formatter::Console is automatically created. If any of the following options were given to TAP::Harness->new they well be passed to this constructor which accepts an optional hashref whose allowed keys are:

  • verbosity

    Set the verbosity level.

  • verbose

    Printing individual test results to STDOUT.

  • timer

    Append run time for each test to output. Uses Time::HiRes if available.

  • failures

    Show test failures (this is a no-op if verbose is selected).

  • comments

    Show test comments (this is a no-op if verbose is selected).

  • quiet

    Suppressing some test output (mostly failures while tests are running).

  • really_quiet

    Suppressing everything but the tests summary.

  • silent

    Suppressing all output.

  • errors

    If parse errors are found in the TAP output, a note of this will be made in the summary report. To see all of the parse errors, set this argument to true:

    errors => 1

  • directives

    If set to a true value, only test results with directives will be displayed. This overrides other settings such as verbose, failures, or comments.

  • stdout

    A filehandle for catching standard output.

  • color

    If defined specifies whether color output is desired. If color is not defined it will default to color output if color support is available on the current platform and output is not being redirected.

  • jobs

    The number of concurrent jobs this formatter will handle.

  • show_count

    Boolean value. If false, disables the X/Y test count which shows up while tests are running.

Any keys for which the value is undef will be ignored.

prepare

Called by Test::Harness before any test output is generated.

This is an advisory and may not be called in the case where tests are being supplied to Test::Harness by an iterator.

open_test

Called to create a new test session. A test session looks like this:

my $session = $formatter->open_test( $test, $parser );
while ( defined( my $result = $parser->next ) ) {
    $session->result($result);
    exit 1 if $result->is_bailout;
}
$session->close_test;

summary

$harness->summary( $aggregate );

summary prints the summary report after all tests are run. The first argument is an aggregate to summarise. An optional second argument may be set to a true value to indicate that the summary is being output as a result of an interrupted test run.