PHP OpenSSL ext: openssl_x509_parse miscalculates validTo_time_t for far-future certificate dates #21545
Description
Description
Used (example) certificate:
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
The following code:
$cert = openssl_x509_parse(file_get_contents(__DIR__ . DIRECTORY_SEPARATOR. "cert.pem"));
# remove some fields to reduce output length
unset ($cert["purposes"]);
unset ($cert["extensions"]);
print_r($cert);Resulted in this output:
Array
(
[name] => /C=DE/ST=BY/L=Munich/O=Awesome Company/OU=CEO of Gummibears/CN=Mentor of the Jungle/[email protected]
[subject] => Array
(
[C] => DE
[ST] => BY
[L] => Munich
[O] => Awesome Company
[OU] => CEO of Gummibears
[CN] => Mentor of the Jungle
[emailAddress] => [email protected]
)
[hash] => ca43115b
[issuer] => Array
(
[C] => DE
[ST] => BY
[L] => Munich
[O] => Awesome Company
[OU] => CEO of Gummibears
[CN] => Mentor of the Jungle
[emailAddress] => [email protected]
)
[version] => 2
[serialNumber] => 0x05C63C89BCB02765212FE65CF0B89D7A8B96A384
[serialNumberHex] => 05C63C89BCB02765212FE65CF0B89D7A8B96A384
[validFrom] => 260327082755Z
[validTo] => 50240330082755Z
[validFrom_time_t] => 1774600075
[validTo_time_t] => 7199
[signatureTypeSN] => RSA-SHA256
[signatureTypeLN] => sha256WithRSAEncryption
[signatureTypeNID] => 668
)
But I expected this output instead:
Array
(
[name] => /C=DE/ST=BY/L=Munich/O=Awesome Company/OU=CEO of Gummibears/CN=Mentor of the Jungle/[email protected]
[subject] => Array
(
[C] => DE
[ST] => BY
[L] => Munich
[O] => Awesome Company
[OU] => CEO of Gummibears
[CN] => Mentor of the Jungle
[emailAddress] => [email protected]
)
[hash] => ca43115b
[issuer] => Array
(
[C] => DE
[ST] => BY
[L] => Munich
[O] => Awesome Company
[OU] => CEO of Gummibears
[CN] => Mentor of the Jungle
[emailAddress] => [email protected]
)
[version] => 2
[serialNumber] => 0x05C63C89BCB02765212FE65CF0B89D7A8B96A384
[serialNumberHex] => 05C63C89BCB02765212FE65CF0B89D7A8B96A384
[validFrom] => 260327082755Z
[validTo] => 50240330082755Z
[validFrom_time_t] => 1774600075
[validTo_time_t] => 96382600075
[signatureTypeSN] => RSA-SHA256
[signatureTypeLN] => sha256WithRSAEncryption
[signatureTypeNID] => 668
)
PHP Version
PHP 8.5.4 (cli) (built: Mar 10 2026 23:30:42) (ZTS Visual C++ 2022 x64)
Copyright (c) The PHP Group
Built by The PHP Group
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with Zend OPcache v8.5.4, Copyright (c), by Zend Technologies
Operating System
Windows 11, Windows Server 20xx