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BIT-LIBPHP-2026-6104 Global buffer over-read in mb_convert_encoding() with attacker-supplied encoding

🗓️ 12 May 2026 08:50:20Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 8 Views

Global buffer over-read in mb_convert_encoding and mbstring when the encoding contains a NUL; affects PHP 8.4 before 8.4.21 and 8.5 before 8.5.6.

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06 Jul 2026 08:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.2 - 9.1
CVSS 46.3
EPSS0.00469
SSVC
8