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fix(MasterCard): Limit the Mastercard 2 series range to 2221 through 2720 #1881

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fix(MasterCard): Limit the Mastercard 2 series range to 2221 through 2720 #1881

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1311a26
fix: Limit the Mastercard 2-series range to 2221-2720
zigzagdev Oct 23, 2026
36ebf1a
test: Test the Mastercard 2-series range boundaries
zigzagdev Oct 23, 2026
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2 changes: 1 addition & 1 deletion src/Validators/CreditCard.php
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Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,7 @@
self::DINERS_CLUB => '/^3(?:0[0-5]|[68]\d)\d{11}$/',
self::DISCOVER => '/^6(?:011|5\d{2})\d{12}$/',
self::JCB => '/^(?:2131|1800|35\d{3})\d{11}$/',
self::MASTERCARD => '/^(5[1-5]|2[2-7])\d{14}$/',
self::MASTERCARD => '/^(?:5[1-5]\d{2}|222[1-9]|22[3-9]\d|2[3-6]\d{2}|27[01]\d|2720)\d{12}$/',
self::VISA => '/^4\d{12}(?:\d{3})?$/',
self::RUPAY => '/^6(?!011)(?:0[0-9]{14}|52[12][0-9]{12})$/',
];
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4 changes: 4 additions & 0 deletions tests/unit/Validators/CreditCardTest.php
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Expand Up @@ -52,6 +52,8 @@ public static function providerForValidInput(): iterable
[$master, '5376 7473 9720 8720'],
[$general, '2223000048400011'], // MasterCard 2 BIN Range
[$master, '2222 4000 4124 0011'],
[$master, '2221000000000009'], // MasterCard 2 BIN Range lower bound
[$master, '2720000000000005'], // MasterCard 2 BIN Range upper bound
[$general, '4024.0071.5336.1885'], // Visa 16
[$visa, '4024.0071.5336.1885'],
[$general, '4024 007 193 879'], // Visa 13
Expand Down Expand Up @@ -94,6 +96,8 @@ public static function providerForInvalidInput(): iterable
[$diners, '4012888888881881'], // Visa
[$discover, '371449635398431'], // American Express
[$jcb, '38520000023237'], // Diners Club
[$master, '2200000000000004'], // Luhn-valid, below the MasterCard 2 BIN Range (2221)
[$master, '2721000000000004'], // Luhn-valid, above the MasterCard 2 BIN Range (2720)
[$master, '05105105105105100'], // Over-long (17-digit) Luhn-valid number; regression for missing ^ anchor
];
}
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