PHP 8.5.7 `levenshtein()` signed-integer overflow

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Original (extern): Link oeffnen
Veroeffentlicht: 2026-06-21 03:51 UTC
Importiert: 2026-06-21 04:51 UTC
Quelle-ID: full_disc
uid_hash: 475f13fffabf6fee1b3ba71b7b7561e0ecdd2ee1e4aac20bab514ae48fab3e26

Full Disclosure

Posted by Khashayar Fereidani on Jun 20

Author: Khashayar Fereidani

Disclosure Date: 2026-06-18

Advisory: https://fereidani.com/php-857-levenshtein-signed-integer-overflow

Contact: https://fereidani.com/contact

The levenshtein() function calculates the Levenshtein distance

between two strings, optionally accepting custom costs for insertion,

replacement, and deletion operations. In PHP 8.5.7, the...

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