/ 
perl-5.40.2
⭐ Starred 2013
/ CPAN::Meta::Validator
Security Advisories (1)
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

NAME

CPAN::Meta::Validator - validate CPAN distribution metadata structures

VERSION

version 2.150010

SYNOPSIS

my $struct = decode_json_file('META.json');

my $cmv = CPAN::Meta::Validator->new( $struct );

unless ( $cmv->is_valid ) {
  my $msg = "Invalid META structure.  Errors found:\n";
  $msg .= join( "\n", $cmv->errors );
  die $msg;
}

DESCRIPTION

This module validates a CPAN Meta structure against the version of the the specification claimed in the meta-spec field of the structure.

METHODS

new

my $cmv = CPAN::Meta::Validator->new( $struct )

The constructor must be passed a metadata structure.

is_valid

if ( $cmv->is_valid ) {
  ...
}

Returns a boolean value indicating whether the metadata provided is valid.

errors

warn( join "\n", $cmv->errors );

Returns a list of errors seen during validation.

BUGS

Please report any bugs or feature using the CPAN Request Tracker. Bugs can be submitted through the web interface at http://rt.cpan.org/Dist/Display.html?Queue=CPAN-Meta

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

AUTHORS

  • David Golden <dagolden@cpan.org>

  • Ricardo Signes <rjbs@cpan.org>

  • Adam Kennedy <adamk@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2010 by David Golden, Ricardo Signes, Adam Kennedy and Contributors.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.